445144524 has 96 divisors (see below), whose sum is σ = 1208100096. Its totient is φ = 126074880.

The previous prime is 445144489. The next prime is 445144529. The reversal of 445144524 is 425441544.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (445144529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365164 + ... + 366380.

It is an arithmetic number, because the mean of its divisors is an integer number (12584376).

Almost surely, 2^445144524 is an apocalyptic number.

445144524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445144524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604050048).

445144524 is an abundant number, since it is smaller than the sum of its proper divisors (762955572).

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

445144524 is a wasteful number, since it uses less digits than its factorization.

445144524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1413 counting only the distinct ones).

The product of its digits is 51200, while the sum is 33.

The square root of 445144524 is about 21098.4483789685. The cubic root of 445144524 is about 763.5433136828.

The spelling of 445144524 in words is "four hundred forty-five million, one hundred forty-four thousand, five hundred twenty-four".