70044228 has 18 divisors (see below), whose sum is σ = 177056334. Its totient is φ = 23348064.

The previous prime is 70044211. The next prime is 70044229. The reversal of 70044228 is 82244007.

It can be written as a sum of positive squares in only one way, i.e., 69255684 + 788544 = 8322^2 + 888^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×70044228² = 9812387752231968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70044229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 972801 + ... + 972872.

It is an arithmetic number, because the mean of its divisors is an integer number (9836463).

Almost surely, 2^70044228 is an apocalyptic number.

It is an amenable number.

70044228 is an abundant number, since it is smaller than the sum of its proper divisors (107012106).

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

70044228 is a wasteful number, since it uses less digits than its factorization.

70044228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945683 (or 1945678 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 70044228 is about 8369.2429765182. The cubic root of 70044228 is about 412.2153099002.

The spelling of 70044228 in words is "seventy million, forty-four thousand, two hundred twenty-eight".