405798072 has 16 divisors (see below), whose sum is σ = 1014495240. Its totient is φ = 135266016.

The previous prime is 405798059. The next prime is 405798083. The reversal of 405798072 is 270897504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8454103 + ... + 8454150.

Almost surely, 2^405798072 is an apocalyptic number.

It is an amenable number.

405798072 is an abundant number, since it is smaller than the sum of its proper divisors (608697168).

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

405798072 is a wasteful number, since it uses less digits than its factorization.

405798072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16908262 (or 16908258 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 405798072 is about 20144.4302972310. The cubic root of 405798072 is about 740.3492823968.

The spelling of 405798072 in words is "four hundred five million, seven hundred ninety-eight thousand, seventy-two".