70115880 has 64 divisors (see below), whose sum is σ = 210911040. Its totient is φ = 18647552.

The previous prime is 70115867. The next prime is 70115887. The reversal of 70115880 is 8851107.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (70115887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73567 + ... + 74513.

It is an arithmetic number, because the mean of its divisors is an integer number (3295485).

Almost surely, 2^70115880 is an apocalyptic number.

It is an amenable number.

70115880 is an abundant number, since it is smaller than the sum of its proper divisors (140795160).

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

70115880 is a wasteful number, since it uses less digits than its factorization.

70115880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 70115880 is about 8373.5225562484. The cubic root of 70115880 is about 412.3558210535.

Adding to 70115880 its reverse (8851107), we get a palindrome (78966987).

The spelling of 70115880 in words is "seventy million, one hundred fifteen thousand, eight hundred eighty".