312405032 has 16 divisors (see below), whose sum is σ = 587878260. Its totient is φ = 155637504.

The previous prime is 312405017. The next prime is 312405043. The reversal of 312405032 is 230504213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 253637476 + 58767556 = 15926^2 + 7666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312404995 and 312405013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68273 + ... + 72704.

Almost surely, 2^312405032 is an apocalyptic number.

It is an amenable number.

312405032 is a deficient number, since it is larger than the sum of its proper divisors (275473228).

312405032 is a wasteful number, since it uses less digits than its factorization.

312405032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141260 (or 141256 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 312405032 is about 17674.9832248860. The cubic root of 312405032 is about 678.5356551008.

Adding to 312405032 its reverse (230504213), we get a palindrome (542909245).

The spelling of 312405032 in words is "three hundred twelve million, four hundred five thousand, thirty-two".