70392320 has 80 divisors (see below), whose sum is σ = 174417408. Its totient is φ = 27217920.

The previous prime is 70392319. The next prime is 70392341. The reversal of 70392320 is 2329307.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 70392320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78917 + ... + 79803.

Almost surely, 2^70392320 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 70392320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87208704).

70392320 is an abundant number, since it is smaller than the sum of its proper divisors (104025088).

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

70392320 is an equidigital number, since it uses as much as digits as its factorization.

70392320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 70392320 is about 8390.0131108360. The cubic root of 70392320 is about 412.8970306530.

The spelling of 70392320 in words is "seventy million, three hundred ninety-two thousand, three hundred twenty".