312371740 has 48 divisors (see below), whose sum is σ = 690020352. Its totient is φ = 118552896.

The previous prime is 312371711. The next prime is 312371833. The reversal of 312371740 is 47173213.

It is a super-2 number, since 2×312371740² = 195152207901255200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312371699 and 312371708.

It is a congruent 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, 55747 + ... + 61093.

It is an arithmetic number, because the mean of its divisors is an integer number (14375424).

Almost surely, 2^312371740 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 312371740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345010176).

312371740 is an abundant number, since it is smaller than the sum of its proper divisors (377648612).

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

312371740 is a wasteful number, since it uses less digits than its factorization.

312371740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506 (or 5504 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 312371740 is about 17674.0414167219. The cubic root of 312371740 is about 678.5115511233.

The spelling of 312371740 in words is "three hundred twelve million, three hundred seventy-one thousand, seven hundred forty".