308720030872 has 64 divisors (see below), whose sum is σ = 671564442240. Its totient is φ = 131490777600.

The previous prime is 308720030807. The next prime is 308720030911. The reversal of 308720030872 is 278030027803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114954 + ... + 794137.

It is an arithmetic number, because the mean of its divisors is an integer number (10493194410).

Almost surely, 2^308720030872 is an apocalyptic number.

It is an amenable number.

308720030872 is an abundant number, since it is smaller than the sum of its proper divisors (362844411368).

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

308720030872 is a wasteful number, since it uses less digits than its factorization.

308720030872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909352 (or 909348 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

It can be divided in two parts, 3087200 and 30872, that multiplied together give a square (95308038400 = 308720²).

The spelling of 308720030872 in words is "three hundred eight billion, seven hundred twenty million, thirty thousand, eight hundred seventy-two".