445332540 has 48 divisors (see below), whose sum is σ = 1249113600. Its totient is φ = 118547520.

The previous prime is 445332539. The next prime is 445332617. The reversal of 445332540 is 45233544.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 445332498 and 445332507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29745 + ... + 42135.

It is an arithmetic number, because the mean of its divisors is an integer number (26023200).

Almost surely, 2^445332540 is an apocalyptic number.

It is an amenable number.

445332540 is an abundant number, since it is smaller than the sum of its proper divisors (803781060).

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

445332540 is a wasteful number, since it uses less digits than its factorization.

445332540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13002 (or 13000 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 445332540 is about 21102.9035916861. The cubic root of 445332540 is about 763.6507979904.

The spelling of 445332540 in words is "four hundred forty-five million, three hundred thirty-two thousand, five hundred forty".