70044140 has 12 divisors (see below), whose sum is σ = 147092736. Its totient is φ = 28017648.

The previous prime is 70044133. The next prime is 70044173. The reversal of 70044140 is 4144007.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3502207 = 70044140 / (7 + 0 + 0 + 4 + 4 + 1 + 4 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751084 + ... + 1751123.

It is an arithmetic number, because the mean of its divisors is an integer number (12257728).

Almost surely, 2^70044140 is an apocalyptic number.

It is an amenable number.

70044140 is an abundant number, since it is smaller than the sum of its proper divisors (77048596).

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

70044140 is a wasteful number, since it uses less digits than its factorization.

70044140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502216 (or 3502214 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 70044140 is about 8369.2377191713. The cubic root of 70044140 is about 412.2151372713.

Adding to 70044140 its reverse (4144007), we get a palindrome (74188147).

The spelling of 70044140 in words is "seventy million, forty-four thousand, one hundred forty".