490256680 has 32 divisors (see below), whose sum is σ = 1129985640. Its totient is φ = 191319040.

The previous prime is 490256651. The next prime is 490256713. The reversal of 490256680 is 86652094.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 205119684 + 285136996 = 14322^2 + 16886^2 .

It is a super-2 number, since 2×490256680² = 480703224569244800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147829 + ... + 151108.

Almost surely, 2^490256680 is an apocalyptic number.

490256680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490256680 is an abundant number, since it is smaller than the sum of its proper divisors (639728960).

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

490256680 is a wasteful number, since it uses less digits than its factorization.

490256680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298989 (or 298985 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 490256680 is about 22141.7406723139. The cubic root of 490256680 is about 788.5111519500.

The spelling of 490256680 in words is "four hundred ninety million, two hundred fifty-six thousand, six hundred eighty".