70451880 has 64 divisors (see below), whose sum is σ = 214358400. Its totient is φ = 18520320.

The previous prime is 70451869. The next prime is 70451911. The reversal of 70451880 is 8815407.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4386 + ... + 12654.

It is an arithmetic number, because the mean of its divisors is an integer number (3349350).

Almost surely, 2^70451880 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 70451880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107179200).

70451880 is an abundant number, since it is smaller than the sum of its proper divisors (143906520).

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

70451880 is a wasteful number, since it uses less digits than its factorization.

70451880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8354 (or 8350 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 70451880 is about 8393.5618184416. The cubic root of 70451880 is about 413.0134506189.

The spelling of 70451880 in words is "seventy million, four hundred fifty-one thousand, eight hundred eighty".