540373444 has 18 divisors (see below), whose sum is σ = 1023992970. Its totient is φ = 249402816.

The previous prime is 540373417. The next prime is 540373447. The reversal of 540373444 is 444373045.

It can be written as a sum of positive squares in 3 ways, for example, as 7225344 + 533148100 = 2688^2 + 23090^2 .

It is a super-2 number, since 2×540373444² = 584006917960842272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540373447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399009 + ... + 400360.

Almost surely, 2^540373444 is an apocalyptic number.

It is an amenable number.

540373444 is a deficient number, since it is larger than the sum of its proper divisors (483619526).

540373444 is a wasteful number, since it uses less digits than its factorization.

540373444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799399 (or 799384 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 34.

The square root of 540373444 is about 23245.9339240221. The cubic root of 540373444 is about 814.5129607909.

The spelling of 540373444 in words is "five hundred forty million, three hundred seventy-three thousand, four hundred forty-four".