540664444 has 12 divisors (see below), whose sum is σ = 951633144. Its totient is φ = 268769264.

The previous prime is 540664441. The next prime is 540664451. The reversal of 540664444 is 444466045.

It is a super-3 number, since 3×540664444³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540664441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389962 + ... + 391345.

It is an arithmetic number, because the mean of its divisors is an integer number (79302762).

Almost surely, 2^540664444 is an apocalyptic number.

It is an amenable number.

540664444 is a deficient number, since it is larger than the sum of its proper divisors (410968700).

540664444 is a wasteful number, since it uses less digits than its factorization.

540664444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781484 (or 781482 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

The square root of 540664444 is about 23252.1922407329. The cubic root of 540664444 is about 814.6591441017.

The spelling of 540664444 in words is "five hundred forty million, six hundred sixty-four thousand, four hundred forty-four".