540140426 has 24 divisors (see below), whose sum is σ = 952223076. Its totient is φ = 229098240.

The previous prime is 540140423. The next prime is 540140443. The reversal of 540140426 is 624041045.

It can be written as a sum of positive squares in 2 ways, for example, as 535876201 + 4264225 = 23149^2 + 2065^2 .

It is a super-2 number, since 2×540140426² = 583503359598922952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540140395 and 540140404.

It is not an unprimeable number, because it can be changed into a prime (540140423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18905 + ... + 37916.

Almost surely, 2^540140426 is an apocalyptic number.

540140426 is a deficient number, since it is larger than the sum of its proper divisors (412082650).

540140426 is a wasteful number, since it uses less digits than its factorization.

540140426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56934 (or 56927 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 540140426 is about 23240.9213672780. The cubic root of 540140426 is about 814.3958667881.

The spelling of 540140426 in words is "five hundred forty million, one hundred forty thousand, four hundred twenty-six".