40321792 has 36 divisors (see below), whose sum is σ = 91988176. Its totient is φ = 17280000.

The previous prime is 40321789. The next prime is 40321811. The reversal of 40321792 is 29712304.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40321792.

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, 9459 + ... + 13042.

Almost surely, 2^40321792 is an apocalyptic number.

It is an amenable number.

40321792 is an abundant number, since it is smaller than the sum of its proper divisors (51666384).

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

40321792 is an equidigital number, since it uses as much as digits as its factorization.

40321792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524 (or 22510 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40321792 is about 6349.9442517238. The cubic root of 40321792 is about 342.9098352877.

It can be divided in two parts, 4032 and 1792, that multiplied together give a square (7225344 = 2688²).

The spelling of 40321792 in words is "forty million, three hundred twenty-one thousand, seven hundred ninety-two".