312501980 has 24 divisors (see below), whose sum is σ = 750005088. Its totient is φ = 107143488.

The previous prime is 312501971. The next prime is 312501991. The reversal of 312501980 is 89105213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115939 + ... + 1116218.

It is an arithmetic number, because the mean of its divisors is an integer number (31250212).

Almost surely, 2^312501980 is an apocalyptic number.

It is an amenable number.

312501980 is an abundant number, since it is smaller than the sum of its proper divisors (437503108).

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

312501980 is a wasteful number, since it uses less digits than its factorization.

312501980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232173 (or 2232171 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 312501980 is about 17677.7255324320. The cubic root of 312501980 is about 678.6058373582.

The spelling of 312501980 in words is "three hundred twelve million, five hundred one thousand, nine hundred eighty".