40019492 has 12 divisors (see below), whose sum is σ = 70183680. Its totient is φ = 19967016.

The previous prime is 40019489. The next prime is 40019509. The reversal of 40019492 is 29491004.

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, 8528 + ... + 12359.

It is an arithmetic number, because the mean of its divisors is an integer number (5848640).

Almost surely, 2^40019492 is an apocalyptic number.

It is an amenable number.

40019492 is a deficient number, since it is larger than the sum of its proper divisors (30164188).

40019492 is a wasteful number, since it uses less digits than its factorization.

40019492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21370 (or 21368 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40019492 is about 6326.0961105567. The cubic root of 40019492 is about 342.0507317330.

The spelling of 40019492 in words is "forty million, nineteen thousand, four hundred ninety-two".