70628448 has 48 divisors (see below), whose sum is σ = 202257216. Its totient is φ = 21402240.

The previous prime is 70628443. The next prime is 70628471. The reversal of 70628448 is 84482607.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70628443) 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 7 ways as a sum of consecutive naturals, for example, 32386 + ... + 34497.

It is an arithmetic number, because the mean of its divisors is an integer number (4213692).

Almost surely, 2^70628448 is an apocalyptic number.

It is an amenable number.

70628448 is an abundant number, since it is smaller than the sum of its proper divisors (131628768).

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

70628448 is a wasteful number, since it uses less digits than its factorization.

70628448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66907 (or 66899 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 70628448 is about 8404.0732981097. The cubic root of 70628448 is about 413.3581971400.

The spelling of 70628448 in words is "seventy million, six hundred twenty-eight thousand, four hundred forty-eight".