70291456 has 39 divisors (see below), whose sum is σ = 141646963. Its totient is φ = 34877440.

The previous prime is 70291433. The next prime is 70291483. The reversal of 70291456 is 65419207.

The square root of 70291456 is 8384.

It is a perfect power (a square), and thus also a powerful number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 536511 + ... + 536641.

Almost surely, 2^70291456 is an apocalyptic number.

70291456 is the 8384-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70291456

70291456 is an abundant number, since it is smaller than the sum of its proper divisors (71355507).

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

70291456 is an frugal number, since it uses more digits than its factorization.

70291456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The cubic root of 70291456 is about 412.6997252583.

The spelling of 70291456 in words is "seventy million, two hundred ninety-one thousand, four hundred fifty-six".