999000492 has 48 divisors (see below), whose sum is σ = 2779832832. Its totient is φ = 273018240.

The previous prime is 999000491. The next prime is 999000493. The reversal of 999000492 is 294000999.

It is an interprime number because it is at equal distance from previous prime (999000491) and next prime (999000493).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (999000491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256609 + ... + 260472.

It is an arithmetic number, because the mean of its divisors is an integer number (57913184).

Almost surely, 2^999000492 is an apocalyptic number.

999000492 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

999000492 is an abundant number, since it is smaller than the sum of its proper divisors (1780832340).

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

999000492 is a wasteful number, since it uses less digits than its factorization.

999000492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517118 (or 517116 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 999000492 is about 31606.9690416528. The cubic root of 999000492 is about 999.6667196032. Note that the first 3 decimals are identical.

The spelling of 999000492 in words is "nine hundred ninety-nine million, four hundred ninety-two", and thus it is an aban number.