312454140 has 24 divisors (see below), whose sum is σ = 874871760. Its totient is φ = 83321088.

The previous prime is 312454117. The next prime is 312454141. The reversal of 312454140 is 41454213.

It is a self number, because there is not a number n which added to its sum of digits gives 312454140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312454141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603725 + ... + 2603844.

It is an arithmetic number, because the mean of its divisors is an integer number (36452990).

Almost surely, 2^312454140 is an apocalyptic number.

312454140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312454140 is an abundant number, since it is smaller than the sum of its proper divisors (562417620).

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

312454140 is a wasteful number, since it uses less digits than its factorization.

312454140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207581 (or 5207579 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 312454140 is about 17676.3723653922. The cubic root of 312454140 is about 678.5712070069.

The spelling of 312454140 in words is "three hundred twelve million, four hundred fifty-four thousand, one hundred forty".