70042572 has 18 divisors (see below), whose sum is σ = 177052148. Its totient is φ = 23347512.

The previous prime is 70042561. The next prime is 70042573. The reversal of 70042572 is 27524007.

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

It is not an unprimeable number, because it can be changed into a prime (70042573) 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, 972778 + ... + 972849.

Almost surely, 2^70042572 is an apocalyptic number.

It is an amenable number.

70042572 is an abundant number, since it is smaller than the sum of its proper divisors (107009576).

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

70042572 is a wasteful number, since it uses less digits than its factorization.

70042572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945637 (or 1945632 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 70042572 is about 8369.1440422543. The cubic root of 70042572 is about 412.2120613150.

Adding to 70042572 its reverse (27524007), we get a palindrome (97566579).

The spelling of 70042572 in words is "seventy million, forty-two thousand, five hundred seventy-two".