1025057808 has 40 divisors (see below), whose sum is σ = 2942296800. Its totient is φ = 341685792.

The previous prime is 1025057801. The next prime is 1025057849. The reversal of 1025057808 is 8087505201.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1025057801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1185978 + ... + 1186841.

It is an arithmetic number, because the mean of its divisors is an integer number (73557420).

Almost surely, 2^1025057808 is an apocalyptic number.

1025057808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1025057808 is an abundant number, since it is smaller than the sum of its proper divisors (1917238992).

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

1025057808 is a wasteful number, since it uses less digits than its factorization.

1025057808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372836 (or 2372824 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 1025057808 is about 32016.5239837182. The cubic root of 1025057808 is about 1008.2837919759.

The spelling of 1025057808 in words is "one billion, twenty-five million, fifty-seven thousand, eight hundred eight".