490707840 has 256 divisors, whose sum is σ = 1850688000. Its totient is φ = 108208128.

The previous prime is 490707821. The next prime is 490707853. The reversal of 490707840 is 48707094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389131 + ... + 390389.

It is an arithmetic number, because the mean of its divisors is an integer number (7229250).

Almost surely, 2^490707840 is an apocalyptic number.

490707840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490707840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925344000).

490707840 is an abundant number, since it is smaller than the sum of its proper divisors (1359980160).

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

490707840 is a wasteful number, since it uses less digits than its factorization.

490707840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 490707840 is about 22151.9263270714. The cubic root of 490707840 is about 788.7529542796.

The spelling of 490707840 in words is "four hundred ninety million, seven hundred seven thousand, eight hundred forty".