40697916 has 48 divisors (see below), whose sum is σ = 112035840. Its totient is φ = 11252160.

The previous prime is 40697897. The next prime is 40697927. The reversal of 40697916 is 61979604.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 5211 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (2334080).

Almost surely, 2^40697916 is an apocalyptic number.

It is an amenable number.

40697916 is an abundant number, since it is smaller than the sum of its proper divisors (71337924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40697916 is a wasteful number, since it uses less digits than its factorization.

40697916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15674 (or 15672 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 40697916 is about 6379.4918292917. The cubic root of 40697916 is about 343.9727646547.

The spelling of 40697916 in words is "forty million, six hundred ninety-seven thousand, nine hundred sixteen".