312489038 has 4 divisors (see below), whose sum is σ = 468733560. Its totient is φ = 156244518.

The previous prime is 312488999. The next prime is 312489043. The reversal of 312489038 is 830984213.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 312488992 and 312489010.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 78122258 + ... + 78122261.

It is an arithmetic number, because the mean of its divisors is an integer number (117183390).

Almost surely, 2^312489038 is an apocalyptic number.

312489038 is a deficient number, since it is larger than the sum of its proper divisors (156244522).

312489038 is a wasteful number, since it uses less digits than its factorization.

312489038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156244521.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 312489038 is about 17677.3594747632. The cubic root of 312489038 is about 678.5964692704.

The spelling of 312489038 in words is "three hundred twelve million, four hundred eighty-nine thousand, thirty-eight".