2570003640 has 160 divisors (see below), whose sum is σ = 8679242880. Its totient is φ = 682069248.

The previous prime is 2570003629. The next prime is 2570003659. The reversal of 2570003640 is 463000752.

It is a happy number.

It is a super-2 number, since 2×2570003640² = 13209837419226499200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 720742 + ... + 724298.

It is an arithmetic number, because the mean of its divisors is an integer number (54245268).

Almost surely, 2^2570003640 is an apocalyptic number.

2570003640 is a gapful number since it is divisible by the number (20) 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 2570003640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4339621440).

2570003640 is an abundant number, since it is smaller than the sum of its proper divisors (6109239240).

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

2570003640 is a wasteful number, since it uses less digits than its factorization.

2570003640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803 (or 3790 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2570003640 is about 50695.2033233915. The cubic root of 2570003640 is about 1369.7603146852.

The spelling of 2570003640 in words is "two billion, five hundred seventy million, three thousand, six hundred forty".