23005391444 has 24 divisors (see below), whose sum is σ = 48432404160. Its totient is φ = 9340534656.

The previous prime is 23005391441. The next prime is 23005391467. The reversal of 23005391444 is 44419350032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23005391441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21621077 + ... + 21622140.

It is an arithmetic number, because the mean of its divisors is an integer number (2018016840).

Almost surely, 2^23005391444 is an apocalyptic number.

It is an amenable number.

23005391444 is an abundant number, since it is smaller than the sum of its proper divisors (25427012716).

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

23005391444 is a wasteful number, since it uses less digits than its factorization.

23005391444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43243247 (or 43243245 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 23005391444 in words is "twenty-three billion, five million, three hundred ninety-one thousand, four hundred forty-four".