1445355856 has 40 divisors (see below), whose sum is σ = 3204259200. Its totient is φ = 618697344.

The previous prime is 1445355839. The next prime is 1445355869. The reversal of 1445355856 is 6585535441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92070 + ... + 106618.

It is an arithmetic number, because the mean of its divisors is an integer number (80106480).

Almost surely, 2^1445355856 is an apocalyptic number.

1445355856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1445355856 is an abundant number, since it is smaller than the sum of its proper divisors (1758903344).

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

1445355856 is a wasteful number, since it uses less digits than its factorization.

1445355856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15451 (or 15445 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 46.

The square root of 1445355856 is about 38017.8360246871. The cubic root of 1445355856 is about 1130.6415173728.

The spelling of 1445355856 in words is "one billion, four hundred forty-five million, three hundred fifty-five thousand, eight hundred fifty-six".