312503442 has 16 divisors (see below), whose sum is σ = 631076160. Its totient is φ = 103156272.

The previous prime is 312503419. The next prime is 312503453. The reversal of 312503442 is 244305213.

It is a super-3 number, since 3×312503442³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252217 + ... + 253452.

It is an arithmetic number, because the mean of its divisors is an integer number (39442260).

Almost surely, 2^312503442 is an apocalyptic number.

312503442 is an abundant number, since it is smaller than the sum of its proper divisors (318572718).

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

312503442 is a wasteful number, since it uses less digits than its factorization.

312503442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505777.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 312503442 is about 17677.7668838572. The cubic root of 312503442 is about 678.6068956130.

Adding to 312503442 its reverse (244305213), we get a palindrome (556808655).

The spelling of 312503442 in words is "three hundred twelve million, five hundred three thousand, four hundred forty-two".