45443939444 has 12 divisors (see below), whose sum is σ = 79528434468. Its totient is φ = 22721529600.

The previous prime is 45443939389. The next prime is 45443939459. The reversal of 45443939444 is 44493934454.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28947619600 + 16496319844 = 170140^2 + 128438^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262214 + ... + 399554.

It is an arithmetic number, because the mean of its divisors is an integer number (6627369539).

Almost surely, 2^45443939444 is an apocalyptic number.

It is an amenable number.

45443939444 is a deficient number, since it is larger than the sum of its proper divisors (34084495024).

45443939444 is a wasteful number, since it uses less digits than its factorization.

45443939444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220066 (or 220064 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 53.

The spelling of 45443939444 in words is "forty-five billion, four hundred forty-three million, nine hundred thirty-nine thousand, four hundred forty-four".