40697715 has 16 divisors (see below), whose sum is σ = 68544000. Its totient is φ = 20562912.

The previous prime is 40697681. The next prime is 40697729. The reversal of 40697715 is 51779604.

It is not a de Polignac number, because 40697715 - 2¹² = 40693619 is a prime.

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, 71115 + ... + 71684.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^40697715 is an apocalyptic number.

40697715 is a deficient number, since it is larger than the sum of its proper divisors (27846285).

40697715 is a wasteful number, since it uses less digits than its factorization.

40697715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142826.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 40697715 is about 6379.4760756664. The cubic root of 40697715 is about 343.9721983796.

The spelling of 40697715 in words is "forty million, six hundred ninety-seven thousand, seven hundred fifteen".