490520420 has 48 divisors (see below), whose sum is σ = 1111047168. Its totient is φ = 180835200.

The previous prime is 490520399. The next prime is 490520423. The reversal of 490520420 is 24025094.

It is a super-2 number, since 2×490520420² = 481220564873952800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 490520420.

It is not an unprimeable number, because it can be changed into a prime (490520423) 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, 250445 + ... + 252395.

It is an arithmetic number, because the mean of its divisors is an integer number (23146816).

Almost surely, 2^490520420 is an apocalyptic number.

It is an amenable number.

490520420 is an abundant number, since it is smaller than the sum of its proper divisors (620526748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

490520420 is a wasteful number, since it uses less digits than its factorization.

490520420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 490520420 is about 22147.6955911896. The cubic root of 490520420 is about 788.6525232349.

The spelling of 490520420 in words is "four hundred ninety million, five hundred twenty thousand, four hundred twenty".