490407040 has 32 divisors (see below), whose sum is σ = 1172380860. Its totient is φ = 196162560.

The previous prime is 490407037. The next prime is 490407089. The reversal of 490407040 is 40704094.

It can be written as a sum of positive squares in 2 ways, for example, as 430313536 + 60093504 = 20744^2 + 7752^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382491 + ... + 383770.

Almost surely, 2^490407040 is an apocalyptic number.

490407040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490407040 is an abundant number, since it is smaller than the sum of its proper divisors (681973820).

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

490407040 is an equidigital number, since it uses as much as digits as its factorization.

490407040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766280 (or 766268 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 490407040 is about 22145.1358090214. The cubic root of 490407040 is about 788.5917549096.

The spelling of 490407040 in words is "four hundred ninety million, four hundred seven thousand, forty".