70320000 has 160 divisors (see below), whose sum is σ = 234206280. Its totient is φ = 18688000.

The previous prime is 70319999. The next prime is 70320011. The reversal of 70320000 is 2307.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 239854 + ... + 240146.

Almost surely, 2^70320000 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 70320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117103140).

70320000 is an abundant number, since it is smaller than the sum of its proper divisors (163886280).

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

70320000 is an equidigital number, since it uses as much as digits as its factorization.

70320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 12.

The square root of 70320000 is about 8385.7021172947. The cubic root of 70320000 is about 412.7555808223.

Adding to 70320000 its reverse (2307), we get a palindrome (70322307).

The spelling of 70320000 in words is "seventy million, three hundred twenty thousand".