445493736 has 64 divisors (see below), whose sum is σ = 1257806400. Its totient is φ = 146059200.

The previous prime is 445493707. The next prime is 445493753. The reversal of 445493736 is 637394544.

445493736 is a `hidden beast` number, since 44 + 549 + 37 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 445493691 and 445493700.

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, 3730 + ... + 30081.

It is an arithmetic number, because the mean of its divisors is an integer number (19653225).

Almost surely, 2^445493736 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 445493736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628903200).

445493736 is an abundant number, since it is smaller than the sum of its proper divisors (812312664).

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

445493736 is a wasteful number, since it uses less digits than its factorization.

445493736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33887 (or 33877 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 445493736 is about 21106.7225309852. The cubic root of 445493736 is about 763.7429258526.

The spelling of 445493736 in words is "four hundred forty-five million, four hundred ninety-three thousand, seven hundred thirty-six".