70657244 has 12 divisors (see below), whose sum is σ = 141314544. Its totient is φ = 30281664.

The previous prime is 70657241. The next prime is 70657247. The reversal of 70657244 is 44275607.

It is an interprime number because it is at equal distance from previous prime (70657241) and next prime (70657247).

70657244 is an admirable number.

It is a super-2 number, since 2×70657244² = 9984892259351072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70657241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261709 + ... + 1261764.

It is an arithmetic number, because the mean of its divisors is an integer number (11776212).

Almost surely, 2^70657244 is an apocalyptic number.

It is an amenable number.

70657244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70657244 is a wasteful number, since it uses less digits than its factorization.

70657244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523484 (or 2523482 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 70657244 is about 8405.7863403729. The cubic root of 70657244 is about 413.4143664111.

The spelling of 70657244 in words is "seventy million, six hundred fifty-seven thousand, two hundred forty-four".