612252990 has 48 divisors (see below), whose sum is σ = 1594528416. Its totient is φ = 162993600.

The previous prime is 612252947. The next prime is 612253021. The reversal of 612252990 is 99252216.

It is a happy number.

612252990 is a `hidden beast` number, since 6 + 122 + 529 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51400 + ... + 62180.

It is an arithmetic number, because the mean of its divisors is an integer number (33219342).

Almost surely, 2^612252990 is an apocalyptic number.

612252990 is an abundant number, since it is smaller than the sum of its proper divisors (982275426).

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

612252990 is a wasteful number, since it uses less digits than its factorization.

612252990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425 (or 11422 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 612252990 is about 24743.7464826974. The cubic root of 612252990 is about 849.1354485124.

The spelling of 612252990 in words is "six hundred twelve million, two hundred fifty-two thousand, nine hundred ninety".