40375685 has 16 divisors (see below), whose sum is σ = 57283200. Its totient is φ = 26730816.

The previous prime is 40375669. The next prime is 40375721. The reversal of 40375685 is 58657304.

It is not a de Polignac number, because 40375685 - 2⁴ = 40375669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18875 + ... + 20904.

It is an arithmetic number, because the mean of its divisors is an integer number (3580200).

Almost surely, 2^40375685 is an apocalyptic number.

It is an amenable number.

40375685 is a deficient number, since it is larger than the sum of its proper divisors (16907515).

40375685 is a wasteful number, since it uses less digits than its factorization.

40375685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39820.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 40375685 is about 6354.1864152699. The cubic root of 40375685 is about 343.0625418968.

The spelling of 40375685 in words is "forty million, three hundred seventy-five thousand, six hundred eighty-five".