490867431 has 4 divisors (see below), whose sum is σ = 654489912. Its totient is φ = 327244952.

The previous prime is 490867387. The next prime is 490867441. The reversal of 490867431 is 134768094.

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 490867431 - 2⁷ = 490867303 is a prime.

It is a super-2 number, since 2×490867431² = 481901669633079522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490867441) 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, 81811236 + ... + 81811241.

It is an arithmetic number, because the mean of its divisors is an integer number (163622478).

Almost surely, 2^490867431 is an apocalyptic number.

490867431 is a deficient number, since it is larger than the sum of its proper divisors (163622481).

490867431 is a wasteful number, since it uses less digits than its factorization.

490867431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163622480.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 490867431 is about 22155.5282266075. The cubic root of 490867431 is about 788.8384526955.

The spelling of 490867431 in words is "four hundred ninety million, eight hundred sixty-seven thousand, four hundred thirty-one".