70430720 has 104 divisors (see below), whose sum is σ = 178891440. Its totient is φ = 26542080.

The previous prime is 70430713. The next prime is 70430749. The reversal of 70430720 is 2703407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389030 + ... + 389210.

It is an arithmetic number, because the mean of its divisors is an integer number (1720110).

Almost surely, 2^70430720 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 70430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89445720).

70430720 is an abundant number, since it is smaller than the sum of its proper divisors (108460720).

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

70430720 is a wasteful number, since it uses less digits than its factorization.

70430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70430720 is about 8392.3012338691. The cubic root of 70430720 is about 412.9720973827.

The spelling of 70430720 in words is "seventy million, four hundred thirty thousand, seven hundred twenty".