45040020444 has 36 divisors (see below), whose sum is σ = 116628024240. Its totient is φ = 14647160640.

The previous prime is 45040020433. The next prime is 45040020463. The reversal of 45040020444 is 44402004054.

It is a happy number.

45040020444 is a `hidden beast` number, since 4 + 50 + 400 + 204 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 15255984 + ... + 15258935.

It is an arithmetic number, because the mean of its divisors is an integer number (3239667340).

Almost surely, 2^45040020444 is an apocalyptic number.

It is an amenable number.

45040020444 is an abundant number, since it is smaller than the sum of its proper divisors (71588003796).

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

45040020444 is a wasteful number, since it uses less digits than its factorization.

45040020444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30514970 (or 30514965 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 45040020444 its reverse (44402004054), we get a palindrome (89442024498).

The spelling of 45040020444 in words is "forty-five billion, forty million, twenty thousand, four hundred forty-four".