70079220 has 144 divisors (see below), whose sum is σ = 231329280. Its totient is φ = 17107200.

The previous prime is 70079171. The next prime is 70079227. The reversal of 70079220 is 2297007.

It is a super-2 number, since 2×70079220² = 9822194151616800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70079227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105690 + ... + 106350.

Almost surely, 2^70079220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70079220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115664640).

70079220 is an abundant number, since it is smaller than the sum of its proper divisors (161250060).

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

70079220 is a wasteful number, since it uses less digits than its factorization.

70079220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 70079220 is about 8371.3332271509. Note that the first 3 decimals coincide. The cubic root of 70079220 is about 412.2839419499.

The spelling of 70079220 in words is "seventy million, seventy-nine thousand, two hundred twenty".