70945056 has 144 divisors (see below), whose sum is σ = 248399424. Its totient is φ = 18703872.

The previous prime is 70945033. The next prime is 70945067. The reversal of 70945056 is 65054907.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70945056.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24855 + ... + 27561.

It is an arithmetic number, because the mean of its divisors is an integer number (1724996).

Almost surely, 2^70945056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70945056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124199712).

70945056 is an abundant number, since it is smaller than the sum of its proper divisors (177454368).

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

70945056 is a wasteful number, since it uses less digits than its factorization.

70945056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 70945056 is about 8422.8888156024. Note that the first 4 decimals coincide. The cubic root of 70945056 is about 413.9749337200.

The spelling of 70945056 in words is "seventy million, nine hundred forty-five thousand, fifty-six".