445453512 has 192 divisors, whose sum is σ = 1386823680. Its totient is φ = 118597248.

The previous prime is 445453507. The next prime is 445453577. The reversal of 445453512 is 215354544.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1162873 + ... + 1163255.

It is an arithmetic number, because the mean of its divisors is an integer number (7223040).

Almost surely, 2^445453512 is an apocalyptic number.

445453512 is a gapful number since it is divisible by the number (42) 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 445453512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693411840).

445453512 is an abundant number, since it is smaller than the sum of its proper divisors (941370168).

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

445453512 is a wasteful number, since it uses less digits than its factorization.

445453512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 461 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 445453512 is about 21105.7696377081. The cubic root of 445453512 is about 763.7199388327.

The spelling of 445453512 in words is "four hundred forty-five million, four hundred fifty-three thousand, five hundred twelve".