1490857056 has 384 divisors, whose sum is σ = 5080320000. Its totient is φ = 421521408.

The previous prime is 1490857051. The next prime is 1490857063. The reversal of 1490857056 is 6507580941.

It is a super-2 number, since 2×1490857056² = 4445309522849974272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490857051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7491645 + ... + 7491843.

It is an arithmetic number, because the mean of its divisors is an integer number (13230000).

Almost surely, 2^1490857056 is an apocalyptic number.

1490857056 is a gapful number since it is divisible by the number (16) 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 1490857056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160000).

1490857056 is an abundant number, since it is smaller than the sum of its proper divisors (3589462944).

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

1490857056 is a wasteful number, since it uses less digits than its factorization.

1490857056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 1490857056 is about 38611.6181479098. The cubic root of 1490857056 is about 1142.3837103108.

The spelling of 1490857056 in words is "one billion, four hundred ninety million, eight hundred fifty-seven thousand, fifty-six".