70223904 has 72 divisors (see below), whose sum is σ = 201621420. Its totient is φ = 23182848.

The previous prime is 70223869. The next prime is 70223911. The reversal of 70223904 is 40932207.

It can be written as a sum of positive squares in 2 ways, for example, as 65610000 + 4613904 = 8100^2 + 2148^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30274 + ... + 32510.

Almost surely, 2^70223904 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 70223904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100810710).

70223904 is an abundant number, since it is smaller than the sum of its proper divisors (131397516).

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

70223904 is a wasteful number, since it uses less digits than its factorization.

70223904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70223904 is about 8379.9704056757. The cubic root of 70223904 is about 412.5674776665.

The spelling of 70223904 in words is "seventy million, two hundred twenty-three thousand, nine hundred four".