312479438 has 16 divisors (see below), whose sum is σ = 473195520. Its totient is φ = 154755000.

The previous prime is 312479429. The next prime is 312479477. The reversal of 312479438 is 834974213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312479395 and 312479404.

It is a congruent number.

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, 94253 + ... + 97511.

It is an arithmetic number, because the mean of its divisors is an integer number (29574720).

Almost surely, 2^312479438 is an apocalyptic number.

312479438 is a deficient number, since it is larger than the sum of its proper divisors (160716082).

312479438 is a wasteful number, since it uses less digits than its factorization.

312479438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703.

The product of its digits is 145152, while the sum is 41.

The square root of 312479438 is about 17677.0879389112. The cubic root of 312479438 is about 678.5895201276.

The spelling of 312479438 in words is "three hundred twelve million, four hundred seventy-nine thousand, four hundred thirty-eight".