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40250881 = 114321979
BaseRepresentation
bin1001100110001…
…0111000000001
32210201221211101
42121202320001
540301012011
63554414401
7666061336
oct231427001
983657741
1040250881
11207a20a0
1211591401
138453ab8
1454ba98d
1538012c1
hex2662e01

40250881 has 12 divisors (see below), whose sum is σ = 44977680. Its totient is φ = 35722680.

The previous prime is 40250867. The next prime is 40250887. The reversal of 40250881 is 18805204.

It is not a de Polignac number, because 40250881 - 217 = 40119809 is a prime.

It is a super-2 number, since 2×402508812 = 3240266842552322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40250887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19350 + ... + 21328.

It is an arithmetic number, because the mean of its divisors is an integer number (3748140).

Almost surely, 240250881 is an apocalyptic number.

It is an amenable number.

40250881 is a deficient number, since it is larger than the sum of its proper divisors (4726799).

40250881 is a wasteful number, since it uses less digits than its factorization.

40250881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 40250881 is about 6344.3582023716. The cubic root of 40250881 is about 342.7087004805.

The spelling of 40250881 in words is "forty million, two hundred fifty thousand, eight hundred eighty-one".

Divisors: 1 11 43 473 1849 1979 20339 21769 85097 936067 3659171 40250881