445091040 has 72 divisors (see below), whose sum is σ = 1518878088. Its totient is φ = 118690560.

The previous prime is 445091033. The next prime is 445091051. The reversal of 445091040 is 40190544.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 445090995 and 445091013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153106 + ... + 155985.

It is an arithmetic number, because the mean of its divisors is an integer number (21095529).

Almost surely, 2^445091040 is an apocalyptic number.

445091040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445091040 is an abundant number, since it is smaller than the sum of its proper divisors (1073787048).

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

445091040 is a wasteful number, since it uses less digits than its factorization.

445091040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309112 (or 309101 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 445091040 is about 21097.1808543227. The cubic root of 445091040 is about 763.5127326138.

The spelling of 445091040 in words is "four hundred forty-five million, ninety-one thousand, forty".