70840320 has 104 divisors (see below), whose sum is σ = 226857936. Its totient is φ = 18874368.

The previous prime is 70840249. The next prime is 70840339. The reversal of 70840320 is 2304807.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60864 + ... + 62016.

Almost surely, 2^70840320 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 70840320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113428968).

70840320 is an abundant number, since it is smaller than the sum of its proper divisors (156017616).

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

70840320 is a wasteful number, since it uses less digits than its factorization.

70840320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 70840320 is about 8416.6691749171. The cubic root of 70840320 is about 413.7711166862.

The spelling of 70840320 in words is "seventy million, eight hundred forty thousand, three hundred twenty".