312243432 has 16 divisors (see below), whose sum is σ = 780608640. Its totient is φ = 104081136.

The previous prime is 312243401. The next prime is 312243457. The reversal of 312243432 is 234342213.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 13010143 = 312243432 / (3 + 1 + 2 + 2 + 4 + 3 + 4 + 3 + 2).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6505048 + ... + 6505095.

It is an arithmetic number, because the mean of its divisors is an integer number (48788040).

Almost surely, 2^312243432 is an apocalyptic number.

It is an amenable number.

312243432 is an abundant number, since it is smaller than the sum of its proper divisors (468365208).

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

312243432 is a wasteful number, since it uses less digits than its factorization.

312243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13010152 (or 13010148 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 312243432 is about 17670.4112006484. The cubic root of 312243432 is about 678.4186379139.

Adding to 312243432 its reverse (234342213), we get a palindrome (546585645).

The spelling of 312243432 in words is "three hundred twelve million, two hundred forty-three thousand, four hundred thirty-two".