1445046856 has 48 divisors (see below), whose sum is σ = 2995731900. Its totient is φ = 652967040.

The previous prime is 1445046839. The next prime is 1445046857. The reversal of 1445046856 is 6586405441.

It can be written as a sum of positive squares in 2 ways, for example, as 1243690756 + 201356100 = 35266^2 + 14190^2 .

It is not an unprimeable number, because it can be changed into a prime (1445046857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163150 + ... + 171778.

Almost surely, 2^1445046856 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 1445046856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497865950).

1445046856 is an abundant number, since it is smaller than the sum of its proper divisors (1550685044).

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

1445046856 is a wasteful number, since it uses less digits than its factorization.

1445046856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8830 (or 8815 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 1445046856 is about 38013.7719254483. The cubic root of 1445046856 is about 1130.5609390323.

The spelling of 1445046856 in words is "one billion, four hundred forty-five million, forty-six thousand, eight hundred fifty-six".