40687692 has 12 divisors (see below), whose sum is σ = 94937976. Its totient is φ = 13562560.

The previous prime is 40687687. The next prime is 40687727. The reversal of 40687692 is 29678604.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695309 + ... + 1695332.

It is an arithmetic number, because the mean of its divisors is an integer number (7911498).

Almost surely, 2^40687692 is an apocalyptic number.

It is an amenable number.

40687692 is an abundant number, since it is smaller than the sum of its proper divisors (54250284).

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

40687692 is a wasteful number, since it uses less digits than its factorization.

40687692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390648 (or 3390646 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 40687692 is about 6378.6904612154. The cubic root of 40687692 is about 343.9439583305.

The spelling of 40687692 in words is "forty million, six hundred eighty-seven thousand, six hundred ninety-two".