70890160 has 40 divisors (see below), whose sum is σ = 179805456. Its totient is φ = 25777920.

The previous prime is 70890103. The next prime is 70890161. The reversal of 70890160 is 6109807.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (70890161) 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, 39399 + ... + 41158.

Almost surely, 2^70890160 is an apocalyptic number.

It is an amenable number.

70890160 is an abundant number, since it is smaller than the sum of its proper divisors (108915296).

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

70890160 is a wasteful number, since it uses less digits than its factorization.

70890160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80581 (or 80575 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 70890160 is about 8419.6294455279. The cubic root of 70890160 is about 413.8681307314.

Adding to 70890160 its reverse (6109807), we get a palindrome (76999967).

The spelling of 70890160 in words is "seventy million, eight hundred ninety thousand, one hundred sixty".