715172420 has 12 divisors (see below), whose sum is σ = 1501862124. Its totient is φ = 286068960.

The previous prime is 715172417. The next prime is 715172441. The reversal of 715172420 is 24271517.

It can be written as a sum of positive squares in 2 ways, for example, as 478996996 + 236175424 = 21886^2 + 15368^2 .

It is a super-2 number, since 2×715172420² = 1022943180657312800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17879291 + ... + 17879330.

It is an arithmetic number, because the mean of its divisors is an integer number (125155177).

Almost surely, 2^715172420 is an apocalyptic number.

It is an amenable number.

715172420 is an abundant number, since it is smaller than the sum of its proper divisors (786689704).

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

715172420 is a wasteful number, since it uses less digits than its factorization.

715172420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35758630 (or 35758628 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 715172420 is about 26742.7077910970. The cubic root of 715172420 is about 894.2732758487.

It can be divided in two parts, 71517 and 2420, that added together give a palindrome (73937).

The spelling of 715172420 in words is "seven hundred fifteen million, one hundred seventy-two thousand, four hundred twenty".