445273122 has 16 divisors (see below), whose sum is σ = 1017767232. Its totient is φ = 127220880.

The previous prime is 445273121. The next prime is 445273183. The reversal of 445273122 is 221372544.

It is a self number, because there is not a number n which added to its sum of digits gives 445273122.

It is not an unprimeable number, because it can be changed into a prime (445273121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5300829 + ... + 5300912.

It is an arithmetic number, because the mean of its divisors is an integer number (63610452).

Almost surely, 2^445273122 is an apocalyptic number.

445273122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

445273122 is an abundant number, since it is smaller than the sum of its proper divisors (572494110).

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

445273122 is a wasteful number, since it uses less digits than its factorization.

445273122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601753.

The product of its digits is 13440, while the sum is 30.

The square root of 445273122 is about 21101.4957289762. The cubic root of 445273122 is about 763.6168333930.

The spelling of 445273122 in words is "four hundred forty-five million, two hundred seventy-three thousand, one hundred twenty-two".