499998312 has 64 divisors (see below), whose sum is σ = 1515153600. Its totient is φ = 151513920.

The previous prime is 499998307. The next prime is 499998377. The reversal of 499998312 is 213899994.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102843 + ... + 107594.

It is an arithmetic number, because the mean of its divisors is an integer number (23674275).

Almost surely, 2^499998312 is an apocalyptic number.

It is an amenable number.

499998312 is an abundant number, since it is smaller than the sum of its proper divisors (1015155288).

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

499998312 is a wasteful number, since it uses less digits than its factorization.

499998312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210463 (or 210453 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 499998312 is about 22360.6420301386. The cubic root of 499998312 is about 793.6996328054.

It can be divided in two parts, 49999 and 8312, that added together give a triangular number (58311 = T₃₄₁).

The spelling of 499998312 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, three hundred twelve".