312452840 has 64 divisors (see below), whose sum is σ = 811036800. Its totient is φ = 106115328.

The previous prime is 312452837. The next prime is 312452857. The reversal of 312452840 is 48254213.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24746 + ... + 35174.

It is an arithmetic number, because the mean of its divisors is an integer number (12672450).

Almost surely, 2^312452840 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 312452840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405518400).

312452840 is an abundant number, since it is smaller than the sum of its proper divisors (498583960).

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

312452840 is a wasteful number, since it uses less digits than its factorization.

312452840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10554 (or 10550 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 312452840 is about 17676.3355931030. The cubic root of 312452840 is about 678.5702659154.

The spelling of 312452840 in words is "three hundred twelve million, four hundred fifty-two thousand, eight hundred forty".