70305880 has 32 divisors (see below), whose sum is σ = 167495040. Its totient is φ = 26467840.

The previous prime is 70305877. The next prime is 70305887. The reversal of 70305880 is 8850307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70305887) 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, 51016 + ... + 52375.

It is an arithmetic number, because the mean of its divisors is an integer number (5234220).

Almost surely, 2^70305880 is an apocalyptic number.

It is an amenable number.

70305880 is an abundant number, since it is smaller than the sum of its proper divisors (97189160).

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

70305880 is a wasteful number, since it uses less digits than its factorization.

70305880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103419 (or 103415 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 70305880 is about 8384.8601657988. The cubic root of 70305880 is about 412.7279523670.

The spelling of 70305880 in words is "seventy million, three hundred five thousand, eight hundred eighty".