40239792 has 30 divisors (see below), whose sum is σ = 112615932. Its totient is φ = 13413216.

The previous prime is 40239779. The next prime is 40239803. The reversal of 40239792 is 29793204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139578 + ... + 139865.

Almost surely, 2^40239792 is an apocalyptic number.

It is an amenable number.

40239792 is an abundant number, since it is smaller than the sum of its proper divisors (72376140).

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

40239792 is a wasteful number, since it uses less digits than its factorization.

40239792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279457 (or 279448 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40239792 is about 6343.4842161071. The cubic root of 40239792 is about 342.6772258417.

The spelling of 40239792 in words is "forty million, two hundred thirty-nine thousand, seven hundred ninety-two".