445546332 has 144 divisors (see below), whose sum is σ = 1456396032. Its totient is φ = 115706880.

The previous prime is 445546307. The next prime is 445546357. The reversal of 445546332 is 233645544.

445546332 is a `hidden beast` number, since 44 + 554 + 63 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (445546307) and next prime (445546357).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 71868 + ... + 77820.

Almost surely, 2^445546332 is an apocalyptic number.

445546332 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 445546332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728198016).

445546332 is an abundant number, since it is smaller than the sum of its proper divisors (1010849700).

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

445546332 is a wasteful number, since it uses less digits than its factorization.

445546332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990 (or 5976 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 445546332 is about 21107.9684479582. The cubic root of 445546332 is about 763.7729810766.

The spelling of 445546332 in words is "four hundred forty-five million, five hundred forty-six thousand, three hundred thirty-two".