312422004 has 36 divisors (see below), whose sum is σ = 808103296. Its totient is φ = 101718288.

The previous prime is 312421943. The next prime is 312422021. The reversal of 312422004 is 400224213.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99364 + ... + 102459.

Almost surely, 2^312422004 is an apocalyptic number.

It is an amenable number.

312422004 is an abundant number, since it is smaller than the sum of its proper divisors (495681292).

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

312422004 is a wasteful number, since it uses less digits than its factorization.

312422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201876 (or 201871 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 312422004 is about 17675.4633319752. The cubic root of 312422004 is about 678.5479424600.

Adding to 312422004 its reverse (400224213), we get a palindrome (712646217).

The spelling of 312422004 in words is "three hundred twelve million, four hundred twenty-two thousand, four".