40690684 has 6 divisors (see below), whose sum is σ = 71208704. Its totient is φ = 20345340.

The previous prime is 40690679. The next prime is 40690687. The reversal of 40690684 is 48609604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086332 + ... + 5086339.

Almost surely, 2^40690684 is an apocalyptic number.

It is an amenable number.

40690684 is a deficient number, since it is larger than the sum of its proper divisors (30518020).

40690684 is a wasteful number, since it uses less digits than its factorization.

40690684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172675 (or 10172673 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 40690684 is about 6378.9249878016. The cubic root of 40690684 is about 343.9523888497.

The spelling of 40690684 in words is "forty million, six hundred ninety thousand, six hundred eighty-four".