70379280 has 100 divisors (see below), whose sum is σ = 244460172. Its totient is φ = 18766080.

The previous prime is 70379263. The next prime is 70379321. The reversal of 70379280 is 8297307.

70379280 is a `hidden beast` number, since 7 + 0 + 379 + 280 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26501904 + 43877376 = 5148^2 + 6624^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 19 ways as a sum of consecutive naturals, for example, 1050 + ... + 11910.

Almost surely, 2^70379280 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 70379280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122230086).

70379280 is an abundant number, since it is smaller than the sum of its proper divisors (174080892).

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

70379280 is a wasteful number, since it uses less digits than its factorization.

70379280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886 (or 10871 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70379280 is about 8389.2359604436. The cubic root of 70379280 is about 412.8715330335.

The spelling of 70379280 in words is "seventy million, three hundred seventy-nine thousand, two hundred eighty".