540426431 has 2 divisors, whose sum is σ = 540426432. Its totient is φ = 540426430.

The previous prime is 540426407. The next prime is 540426449. The reversal of 540426431 is 134624045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540426431 is a prime.

It is a super-2 number, since 2×540426431² = 584121454646795522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540426394 and 540426403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540426631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270213215 + 270213216.

It is an arithmetic number, because the mean of its divisors is an integer number (270213216).

Almost surely, 2^540426431 is an apocalyptic number.

540426431 is a deficient number, since it is larger than the sum of its proper divisors (1).

540426431 is an equidigital number, since it uses as much as digits as its factorization.

540426431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 540426431 is about 23247.0736007782. The cubic root of 540426431 is about 814.5395826195.

The spelling of 540426431 in words is "five hundred forty million, four hundred twenty-six thousand, four hundred thirty-one".