492732021 has 8 divisors (see below), whose sum is σ = 657432160. Its totient is φ = 328259952.

The previous prime is 492732017. The next prime is 492732041. The reversal of 492732021 is 120237294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 492732021 - 2² = 492732017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 492732021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492732041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51910 + ... + 60663.

It is an arithmetic number, because the mean of its divisors is an integer number (82179020).

Almost surely, 2^492732021 is an apocalyptic number.

It is an amenable number.

492732021 is a deficient number, since it is larger than the sum of its proper divisors (164700139).

492732021 is a wasteful number, since it uses less digits than its factorization.

492732021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114035.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 492732021 is about 22197.5679073181. The cubic root of 492732021 is about 789.8360077268.

The spelling of 492732021 in words is "four hundred ninety-two million, seven hundred thirty-two thousand, twenty-one".