382644405 has 80 divisors (see below), whose sum is σ = 805964544. Its totient is φ = 171227520.

The previous prime is 382644397. The next prime is 382644407. The reversal of 382644405 is 504446283.

382644405 is a `hidden beast` number, since 3 + 8 + 2 + 644 + 4 + 0 + 5 = 666.

It is not a de Polignac number, because 382644405 - 2³ = 382644397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 382644405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382644407) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 54612 + ... + 61218.

Almost surely, 2^382644405 is an apocalyptic number.

It is an amenable number.

382644405 is an abundant number, since it is smaller than the sum of its proper divisors (423320139).

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

382644405 is a wasteful number, since it uses less digits than its factorization.

382644405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648 (or 6639 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 382644405 is about 19561.2986532081. The cubic root of 382644405 is about 725.9919232760.

The spelling of 382644405 in words is "three hundred eighty-two million, six hundred forty-four thousand, four hundred five".