70940280 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 18094208.

The previous prime is 70940273. The next prime is 70940321. The reversal of 70940280 is 8204907.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 10092 + ... + 15611.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^70940280 is an apocalyptic number.

It is an amenable number.

70940280 is an abundant number, since it is smaller than the sum of its proper divisors (151142280).

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

70940280 is a wasteful number, since it uses less digits than its factorization.

70940280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25740 (or 25736 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 70940280 is about 8422.6052976499. The cubic root of 70940280 is about 413.9656439552.

The spelling of 70940280 in words is "seventy million, nine hundred forty thousand, two hundred eighty".