490427531 has 16 divisors (see below), whose sum is σ = 540895968. Its totient is φ = 440966400.

The previous prime is 490427519. The next prime is 490427549. The reversal of 490427531 is 135724094.

It is a cyclic number.

It is not a de Polignac number, because 490427531 - 2¹⁸ = 490165387 is a prime.

It is a super-2 number, since 2×490427531² = 481038326325511922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 490427491 and 490427500.

It is not an unprimeable number, because it can be changed into a prime (490427501) 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, 634061 + ... + 634833.

It is an arithmetic number, because the mean of its divisors is an integer number (33805998).

Almost surely, 2^490427531 is an apocalyptic number.

490427531 is a deficient number, since it is larger than the sum of its proper divisors (50468437).

490427531 is a wasteful number, since it uses less digits than its factorization.

490427531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 490427531 is about 22145.5984565782. The cubic root of 490427531 is about 788.6027381727.

The spelling of 490427531 in words is "four hundred ninety million, four hundred twenty-seven thousand, five hundred thirty-one".