445473756 has 240 divisors, whose sum is σ = 1485570240. Its totient is φ = 113218560.

The previous prime is 445473739. The next prime is 445473803. The reversal of 445473756 is 657374544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 854776 + ... + 855296.

It is an arithmetic number, because the mean of its divisors is an integer number (6189876).

Almost surely, 2^445473756 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 445473756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742785120).

445473756 is an abundant number, since it is smaller than the sum of its proper divisors (1040096484).

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

445473756 is a wasteful number, since it uses less digits than its factorization.

445473756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 575 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 45.

The square root of 445473756 is about 21106.2492167604. The cubic root of 445473756 is about 763.7315079503.

It can be divided in two parts, 4454 and 73756, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 445473756 in words is "four hundred forty-five million, four hundred seventy-three thousand, seven hundred fifty-six".