70057020 has 96 divisors (see below), whose sum is σ = 215550720. Its totient is φ = 16860160.

The previous prime is 70057007. The next prime is 70057033. The reversal of 70057020 is 2075007.

It is an interprime number because it is at equal distance from previous prime (70057007) and next prime (70057033).

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, 117844 + ... + 118436.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^70057020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70057020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107775360).

70057020 is an abundant number, since it is smaller than the sum of its proper divisors (145493700).

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

70057020 is a wasteful number, since it uses less digits than its factorization.

70057020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 70057020 is about 8370.0071684557. The cubic root of 70057020 is about 412.2404023188.

The spelling of 70057020 in words is "seventy million, fifty-seven thousand, twenty".