544444440 has 64 divisors (see below), whose sum is σ = 1637474400. Its totient is φ = 144817152.

The previous prime is 544444423. The next prime is 544444447. The reversal of 544444440 is 44444445.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544444447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43534 + ... + 54626.

Almost surely, 2^544444440 is an apocalyptic number.

It is an amenable number.

544444440 is an abundant number, since it is smaller than the sum of its proper divisors (1093029960).

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

544444440 is a wasteful number, since it uses less digits than its factorization.

544444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516 (or 11512 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 33.

The square root of 544444440 is about 23333.3332380952. Note that the first 3 decimals coincide. The cubic root of 544444440 is about 816.5532700158.

Adding to 544444440 its reverse (44444445), we get a palindrome (588888885).

The spelling of 544444440 in words is "five hundred forty-four million, four hundred forty-four thousand, four hundred forty".