612250728 has 32 divisors (see below), whose sum is σ = 1532252160. Its totient is φ = 203866880.

The previous prime is 612250703. The next prime is 612250739. The reversal of 612250728 is 827052216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10393 + ... + 36503.

It is an arithmetic number, because the mean of its divisors is an integer number (47882880).

Almost surely, 2^612250728 is an apocalyptic number.

It is an amenable number.

612250728 is an abundant number, since it is smaller than the sum of its proper divisors (920001432).

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

612250728 is a wasteful number, since it uses less digits than its factorization.

612250728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27097 (or 27093 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 612250728 is about 24743.7007741364. The cubic root of 612250728 is about 849.1344027863.

The spelling of 612250728 in words is "six hundred twelve million, two hundred fifty thousand, seven hundred twenty-eight".