492708021 has 16 divisors (see below), whose sum is σ = 726601344. Its totient is φ = 295009344.

The previous prime is 492707989. The next prime is 492708023. The reversal of 492708021 is 120807294.

It is a happy number.

It is not a de Polignac number, because 492708021 - 2⁵ = 492707989 is a prime.

It is a super-2 number, since 2×492708021² = 485522387915472882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492708023) 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, 169281 + ... + 172166.

It is an arithmetic number, because the mean of its divisors is an integer number (45412584).

Almost surely, 2^492708021 is an apocalyptic number.

It is an amenable number.

492708021 is a deficient number, since it is larger than the sum of its proper divisors (233893323).

492708021 is a wasteful number, since it uses less digits than its factorization.

492708021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341500.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 492708021 is about 22197.0273009698. The cubic root of 492708021 is about 789.8231837365.

It can be divided in two parts, 49270 and 8021, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 492708021 in words is "four hundred ninety-two million, seven hundred eight thousand, twenty-one".