312274999400 has 576 divisors, whose sum is σ = 936821289600. Its totient is φ = 94237286400.

The previous prime is 312274999397. The next prime is 312274999409. The reversal of 312274999400 is 4999472213.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (312274999409) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1805057714 + ... + 1805057886.

It is an arithmetic number, because the mean of its divisors is an integer number (1626425850).

Almost surely, 2^312274999400 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 312274999400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468410644800).

312274999400 is an abundant number, since it is smaller than the sum of its proper divisors (624546290200).

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

312274999400 is a wasteful number, since it uses less digits than its factorization.

312274999400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 312274999400 in words is "three hundred twelve billion, two hundred seventy-four million, nine hundred ninety-nine thousand, four hundred".