445499460 has 192 divisors, whose sum is σ = 1667635200. Its totient is φ = 96453504.

The previous prime is 445499423. The next prime is 445499507. The reversal of 445499460 is 64994544.

445499460 is a `hidden beast` number, since 44 + 549 + 9 + 4 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68719 + ... + 74921.

It is an arithmetic number, because the mean of its divisors is an integer number (8685600).

Almost surely, 2^445499460 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 445499460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833817600).

445499460 is an abundant number, since it is smaller than the sum of its proper divisors (1222135740).

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

445499460 is a wasteful number, since it uses less digits than its factorization.

445499460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247 (or 6239 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 445499460 is about 21106.8581271586. The cubic root of 445499460 is about 763.7461968644.

The spelling of 445499460 in words is "four hundred forty-five million, four hundred ninety-nine thousand, four hundred sixty".