540331431 has 8 divisors (see below), whose sum is σ = 720645744. Its totient is φ = 360119040.

The previous prime is 540331361. The next prime is 540331487. The reversal of 540331431 is 134133045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540331431 - 2¹⁴ = 540315047 is a prime.

It is a super-2 number, since 2×540331431² = 583916110653015522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540338431) 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, 12106 + ... + 35031.

It is an arithmetic number, because the mean of its divisors is an integer number (90080718).

Almost surely, 2^540331431 is an apocalyptic number.

540331431 is a deficient number, since it is larger than the sum of its proper divisors (180314313).

540331431 is a wasteful number, since it uses less digits than its factorization.

540331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50961.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 540331431 is about 23245.0302430434. The cubic root of 540331431 is about 814.4918513030.

Adding to 540331431 its reverse (134133045), we get a palindrome (674464476).

The spelling of 540331431 in words is "five hundred forty million, three hundred thirty-one thousand, four hundred thirty-one".