312380340 has 24 divisors (see below), whose sum is σ = 874665120. Its totient is φ = 83301408.

The previous prime is 312380323. The next prime is 312380371. The reversal of 312380340 is 43083213.

It is a self number, because there is not a number n which added to its sum of digits gives 312380340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603110 + ... + 2603229.

It is an arithmetic number, because the mean of its divisors is an integer number (36444380).

Almost surely, 2^312380340 is an apocalyptic number.

312380340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312380340 is an abundant number, since it is smaller than the sum of its proper divisors (562284780).

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

312380340 is a wasteful number, since it uses less digits than its factorization.

312380340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206351 (or 5206349 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 312380340 is about 17674.2847097131. The cubic root of 312380340 is about 678.5177778345.

The spelling of 312380340 in words is "three hundred twelve million, three hundred eighty thousand, three hundred forty".