312532836 has 144 divisors (see below), whose sum is σ = 928437888. Its totient is φ = 80087040.

The previous prime is 312532799. The next prime is 312532849. The reversal of 312532836 is 638235213.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 312532797 and 312532806.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 985750 + ... + 986066.

Almost surely, 2^312532836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312532836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464218944).

312532836 is an abundant number, since it is smaller than the sum of its proper divisors (615905052).

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

312532836 is a wasteful number, since it uses less digits than its factorization.

312532836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 437 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 312532836 is about 17678.5982475987. The cubic root of 312532836 is about 678.6281714808.

The spelling of 312532836 in words is "three hundred twelve million, five hundred thirty-two thousand, eight hundred thirty-six".