70669144 has 32 divisors (see below), whose sum is σ = 163084320. Its totient is φ = 27956736.

The previous prime is 70669141. The next prime is 70669163. The reversal of 70669144 is 44196607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70669141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47809 + ... + 49264.

It is an arithmetic number, because the mean of its divisors is an integer number (5096385).

Almost surely, 2^70669144 is an apocalyptic number.

It is an amenable number.

70669144 is an abundant number, since it is smaller than the sum of its proper divisors (92415176).

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

70669144 is a wasteful number, since it uses less digits than its factorization.

70669144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97099 (or 97095 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70669144 is about 8406.4941563056. The cubic root of 70669144 is about 413.4375740094.

The spelling of 70669144 in words is "seventy million, six hundred sixty-nine thousand, one hundred forty-four".