70940880 has 80 divisors (see below), whose sum is σ = 244359360. Its totient is φ = 18916992.

The previous prime is 70940879. The next prime is 70940911. The reversal of 70940880 is 8804907.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14262 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (3054492).

Almost surely, 2^70940880 is an apocalyptic number.

It is an amenable number.

70940880 is an abundant number, since it is smaller than the sum of its proper divisors (173418480).

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

70940880 is a wasteful number, since it uses less digits than its factorization.

70940880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32865 (or 32853 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 70940880 is about 8422.6409160073. The cubic root of 70940880 is about 413.9668110340.

The spelling of 70940880 in words is "seventy million, nine hundred forty thousand, eight hundred eighty".