490372251 has 4 divisors (see below), whose sum is σ = 653829672. Its totient is φ = 326914832.

The previous prime is 490372249. The next prime is 490372303. The reversal of 490372251 is 152273094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490372251 - 2¹ = 490372249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490371251) 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, 81728706 + ... + 81728711.

It is an arithmetic number, because the mean of its divisors is an integer number (163457418).

Almost surely, 2^490372251 is an apocalyptic number.

490372251 is a deficient number, since it is larger than the sum of its proper divisors (163457421).

490372251 is a wasteful number, since it uses less digits than its factorization.

490372251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163457420.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 490372251 is about 22144.3503178576. The cubic root of 490372251 is about 788.5731071571.

The spelling of 490372251 in words is "four hundred ninety million, three hundred seventy-two thousand, two hundred fifty-one".