492402621 has 4 divisors (see below), whose sum is σ = 656536832. Its totient is φ = 328268412.

The previous prime is 492402619. The next prime is 492402641. The reversal of 492402621 is 126204294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 492402621 - 2¹ = 492402619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492402601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82067101 + ... + 82067106.

It is an arithmetic number, because the mean of its divisors is an integer number (164134208).

Almost surely, 2^492402621 is an apocalyptic number.

It is an amenable number.

492402621 is a deficient number, since it is larger than the sum of its proper divisors (164134211).

492402621 is a wasteful number, since it uses less digits than its factorization.

492402621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164134210.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 492402621 is about 22190.1469350701. The cubic root of 492402621 is about 789.6599620820.

The spelling of 492402621 in words is "four hundred ninety-two million, four hundred two thousand, six hundred twenty-one".