70789420 has 24 divisors (see below), whose sum is σ = 160093584. Its totient is φ = 26137536.

The previous prime is 70789393. The next prime is 70789441. The reversal of 70789420 is 2498707.

It is a happy number.

It is a super-2 number, since 2×70789420² = 10022283967872800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 70789420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135874 + ... + 136393.

It is an arithmetic number, because the mean of its divisors is an integer number (6670566).

Almost surely, 2^70789420 is an apocalyptic number.

It is an amenable number.

70789420 is an abundant number, since it is smaller than the sum of its proper divisors (89304164).

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

70789420 is a wasteful number, since it uses less digits than its factorization.

70789420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272289 (or 272287 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 70789420 is about 8413.6448700905. The cubic root of 70789420 is about 413.6719923642.

The spelling of 70789420 in words is "seventy million, seven hundred eighty-nine thousand, four hundred twenty".