70073120 has 96 divisors (see below), whose sum is σ = 181621440. Its totient is φ = 25390080.

The previous prime is 70073117. The next prime is 70073149. The reversal of 70073120 is 2137007.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 70073092 and 70073101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122435 + ... + 123005.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^70073120 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 70073120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90810720).

70073120 is an abundant number, since it is smaller than the sum of its proper divisors (111548320).

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

70073120 is a wasteful number, since it uses less digits than its factorization.

70073120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 70073120 is about 8370.9688806016. The cubic root of 70073120 is about 412.2719792739.

The spelling of 70073120 in words is "seventy million, seventy-three thousand, one hundred twenty".