445043136 has 112 divisors (see below), whose sum is σ = 1268455680. Its totient is φ = 137195520.

The previous prime is 445043117. The next prime is 445043167. The reversal of 445043136 is 631340544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191421 + ... + 193731.

Almost surely, 2^445043136 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 445043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634227840).

445043136 is an abundant number, since it is smaller than the sum of its proper divisors (823412544).

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

445043136 is a wasteful number, since it uses less digits than its factorization.

445043136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 445043136 is about 21096.0455062080. The cubic root of 445043136 is about 763.4853399961.

It can be divided in two parts, 4450 and 43136, that added together give a triangular number (47586 = T₃₀₈).

The spelling of 445043136 in words is "four hundred forty-five million, forty-three thousand, one hundred thirty-six".