70065408 has 72 divisors (see below), whose sum is σ = 213131968. Its totient is φ = 20017152.

The previous prime is 70065397. The next prime is 70065461. The reversal of 70065408 is 80456007.

It is a happy number.

It is a super-2 number, since 2×70065408² = 9818322796412928, which contains 22 as substring.

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, 1141 + ... + 11892.

Almost surely, 2^70065408 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 70065408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106565984).

70065408 is an abundant number, since it is smaller than the sum of its proper divisors (143066560).

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

70065408 is a wasteful number, since it uses less digits than its factorization.

70065408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13059 (or 13045 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70065408 is about 8370.5082282977. The cubic root of 70065408 is about 412.2568543199.

The spelling of 70065408 in words is "seventy million, sixty-five thousand, four hundred eight".