40729924 has 9 divisors (see below), whose sum is σ = 71299711. Its totient is φ = 20358580.

The previous prime is 40729907. The next prime is 40729937. The reversal of 40729924 is 42992704.

The square root of 40729924 is 6382.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11169 + ... + 14359.

Almost surely, 2^40729924 is an apocalyptic number.

40729924 is the 6382-nd square number.

It is an amenable number.

40729924 is a deficient number, since it is larger than the sum of its proper divisors (30569787).

40729924 is an frugal number, since it uses more digits than its factorization.

40729924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386 (or 3193 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The cubic root of 40729924 is about 344.0629166514.

The spelling of 40729924 in words is "forty million, seven hundred twenty-nine thousand, nine hundred twenty-four".