1868745 has 32 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 921024.

The previous prime is 1868723. The next prime is 1868747. The reversal of 1868745 is 5478681.

It is not a de Polignac number, because 1868745 - 2⁷ = 1868617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22474 + ... + 22556.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1868745 is an apocalyptic number.

1868745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1868745 is a deficient number, since it is larger than the sum of its proper divisors (1356855).

1868745 is a wasteful number, since it uses less digits than its factorization.

1868745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189.

The product of its digits is 53760, while the sum is 39.

The square root of 1868745 is about 1367.0204826556. The cubic root of 1868745 is about 123.1733295630.

The spelling of 1868745 in words is "one million, eight hundred sixty-eight thousand, seven hundred forty-five".