312100434 has 24 divisors (see below), whose sum is σ = 677581632. Its totient is φ = 103823640.

The previous prime is 312100427. The next prime is 312100447. The reversal of 312100434 is 434001213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8182 + ... + 26289.

It is an arithmetic number, because the mean of its divisors is an integer number (28232568).

Almost surely, 2^312100434 is an apocalyptic number.

312100434 is an abundant number, since it is smaller than the sum of its proper divisors (365481198).

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

312100434 is a wasteful number, since it uses less digits than its factorization.

312100434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34982 (or 34979 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 312100434 is about 17666.3644816923. The cubic root of 312100434 is about 678.3150570624.

Adding to 312100434 its reverse (434001213), we get a palindrome (746101647).

The spelling of 312100434 in words is "three hundred twelve million, one hundred thousand, four hundred thirty-four".