912031830 has 48 divisors (see below), whose sum is σ = 2395751904. Its totient is φ = 240698880.

The previous prime is 912031823. The next prime is 912031847. The reversal of 912031830 is 38130219.

It is a junction number, because it is equal to n+sod(n) for n = 912031794 and 912031803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43506 + ... + 60965.

It is an arithmetic number, because the mean of its divisors is an integer number (49911498).

Almost surely, 2^912031830 is an apocalyptic number.

912031830 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

912031830 is an abundant number, since it is smaller than the sum of its proper divisors (1483720074).

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

912031830 is a wasteful number, since it uses less digits than its factorization.

912031830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104581 (or 104578 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 912031830 is about 30199.8647347964. The cubic root of 912031830 is about 969.7727990210.

The spelling of 912031830 in words is "nine hundred twelve million, thirty-one thousand, eight hundred thirty".