70144244 has 12 divisors (see below), whose sum is σ = 129973284. Its totient is φ = 33009024.

The previous prime is 70144241. The next prime is 70144297. The reversal of 70144244 is 44244107.

It can be written as a sum of positive squares in 2 ways, for example, as 25120144 + 45024100 = 5012^2 + 6710^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70144241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515699 + ... + 515834.

It is an arithmetic number, because the mean of its divisors is an integer number (10831107).

Almost surely, 2^70144244 is an apocalyptic number.

It is an amenable number.

70144244 is a deficient number, since it is larger than the sum of its proper divisors (59829040).

70144244 is a wasteful number, since it uses less digits than its factorization.

70144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031554 (or 1031552 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 70144244 is about 8375.2160569146. The cubic root of 70144244 is about 412.4114170360.

The spelling of 70144244 in words is "seventy million, one hundred forty-four thousand, two hundred forty-four".