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2867388 = 223238949
BaseRepresentation
bin1010111100000010111100
312101200022120
422330002330
51213224023
6141242540
733241506
oct12740274
95350276
102867388
111689347
12b63450
137951a4
14548d76
153b98e3
hex2bc0bc

2867388 has 12 divisors (see below), whose sum is σ = 6690600. Its totient is φ = 955792.

The previous prime is 2867383. The next prime is 2867429. The reversal of 2867388 is 8837682.

2867388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2867383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119463 + ... + 119486.

It is an arithmetic number, because the mean of its divisors is an integer number (557550).

22867388 is an apocalyptic number.

It is an amenable number.

2867388 is an abundant number, since it is smaller than the sum of its proper divisors (3823212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2867388 is a wasteful number, since it uses less digits than its factorization.

2867388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238956 (or 238954 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2867388 is about 1693.3363517033. The cubic root of 2867388 is about 142.0677452324.

The spelling of 2867388 in words is "two million, eight hundred sixty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 238949 477898 716847 955796 1433694 2867388