312254540 has 36 divisors (see below), whose sum is σ = 710063424. Its totient is φ = 115292736.

The previous prime is 312254539. The next prime is 312254557. The reversal of 312254540 is 45452213.

It is a happy number.

It is a super-2 number, since 2×312254540² = 195005795501223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 11 ways as a sum of consecutive naturals, for example, 42812 + ... + 49571.

It is an arithmetic number, because the mean of its divisors is an integer number (19723984).

Almost surely, 2^312254540 is an apocalyptic number.

It is an amenable number.

312254540 is an abundant number, since it is smaller than the sum of its proper divisors (397808884).

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

312254540 is a wasteful number, since it uses less digits than its factorization.

312254540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92418 (or 92403 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 312254540 is about 17670.7255085919. The cubic root of 312254540 is about 678.4266826893.

The spelling of 312254540 in words is "three hundred twelve million, two hundred fifty-four thousand, five hundred forty".