70078220 has 12 divisors (see below), whose sum is σ = 147164304. Its totient is φ = 28031280.

The previous prime is 70078163. The next prime is 70078231. The reversal of 70078220 is 2287007.

It is a self number, because there is not a number n which added to its sum of digits gives 70078220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751936 + ... + 1751975.

It is an arithmetic number, because the mean of its divisors is an integer number (12263692).

Almost surely, 2^70078220 is an apocalyptic number.

It is an amenable number.

70078220 is an abundant number, since it is smaller than the sum of its proper divisors (77086084).

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

70078220 is a wasteful number, since it uses less digits than its factorization.

70078220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503920 (or 3503918 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 70078220 is about 8371.2734992951. The cubic root of 70078220 is about 412.2819809031.

The spelling of 70078220 in words is "seventy million, seventy-eight thousand, two hundred twenty".