544544442 has 48 divisors (see below), whose sum is σ = 1345354920. Its totient is φ = 157694976.

The previous prime is 544544431. The next prime is 544544461. The reversal of 544544442 is 244445445.

It can be written as a sum of positive squares in 4 ways, for example, as 353026521 + 191517921 = 18789^2 + 13839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 544544397 and 544544406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64467 + ... + 72422.

Almost surely, 2^544544442 is an apocalyptic number.

544544442 is an abundant number, since it is smaller than the sum of its proper divisors (800810478).

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

544544442 is a wasteful number, since it uses less digits than its factorization.

544544442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136927 (or 136924 counting only the distinct ones).

The product of its digits is 204800, while the sum is 36.

The square root of 544544442 is about 23335.4760397126. The cubic root of 544544442 is about 816.6032610128.

Adding to 544544442 its reverse (244445445), we get a palindrome (788989887).

The spelling of 544544442 in words is "five hundred forty-four million, five hundred forty-four thousand, four hundred forty-two".