70449456 has 160 divisors (see below), whose sum is σ = 232128000. Its totient is φ = 18251520.

The previous prime is 70449433. The next prime is 70449461. The reversal of 70449456 is 65494407.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180910 + ... + 181298.

It is an arithmetic number, because the mean of its divisors is an integer number (1450800).

Almost surely, 2^70449456 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 70449456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116064000).

70449456 is an abundant number, since it is smaller than the sum of its proper divisors (161678544).

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

70449456 is a wasteful number, since it uses less digits than its factorization.

70449456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 70449456 is about 8393.4174208126. The cubic root of 70449456 is about 413.0087137872.

The spelling of 70449456 in words is "seventy million, four hundred forty-nine thousand, four hundred fifty-six".