70556928 has 144 divisors (see below), whose sum is σ = 208782336. Its totient is φ = 21012480.

The previous prime is 70556887. The next prime is 70556933. The reversal of 70556928 is 82965507.

It is a self number, because there is not a number n which added to its sum of digits gives 70556928.

It is a congruent 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, 369313 + ... + 369503.

Almost surely, 2^70556928 is an apocalyptic number.

70556928 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70556928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104391168).

70556928 is an abundant number, since it is smaller than the sum of its proper divisors (138225408).

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

70556928 is a wasteful number, since it uses less digits than its factorization.

70556928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 70556928 is about 8399.8171408668. The cubic root of 70556928 is about 413.2186246610.

The spelling of 70556928 in words is "seventy million, five hundred fifty-six thousand, nine hundred twenty-eight".