70257000 has 128 divisors (see below), whose sum is σ = 239241600. Its totient is φ = 17024000.

The previous prime is 70256987. The next prime is 70257013. The reversal of 70257000 is 75207.

It is an interprime number because it is at equal distance from previous prime (70256987) and next prime (70257013).

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, 31936 + ... + 34064.

It is an arithmetic number, because the mean of its divisors is an integer number (1869075).

Almost surely, 2^70257000 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 70257000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119620800).

70257000 is an abundant number, since it is smaller than the sum of its proper divisors (168984600).

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

70257000 is a wasteful number, since it uses less digits than its factorization.

70257000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164 (or 2150 counting only the distinct ones).

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

The square root of 70257000 is about 8381.9448817085. The cubic root of 70257000 is about 412.6322808079.

The spelling of 70257000 in words is "seventy million, two hundred fifty-seven thousand".