312402342 has 32 divisors (see below), whose sum is σ = 728640000. Its totient is φ = 89257224.

The previous prime is 312402341. The next prime is 312402379. The reversal of 312402342 is 243204213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312402341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73842 + ... + 77957.

It is an arithmetic number, because the mean of its divisors is an integer number (22770000).

Almost surely, 2^312402342 is an apocalyptic number.

312402342 is an abundant number, since it is smaller than the sum of its proper divisors (416237658).

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

312402342 is a wasteful number, since it uses less digits than its factorization.

312402342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151825 (or 151811 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 312402342 is about 17674.9071284689. The cubic root of 312402342 is about 678.5337075584.

Adding to 312402342 its reverse (243204213), we get a palindrome (555606555).

The spelling of 312402342 in words is "three hundred twelve million, four hundred two thousand, three hundred forty-two".