540642926 has 4 divisors (see below), whose sum is σ = 810964392. Its totient is φ = 270321462.

The previous prime is 540642811. The next prime is 540642953. The reversal of 540642926 is 629246045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 629246045 = 5 ⋅125849209.

It is a self number, because there is not a number n which added to its sum of digits gives 540642926.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135160730 + ... + 135160733.

It is an arithmetic number, because the mean of its divisors is an integer number (202741098).

Almost surely, 2^540642926 is an apocalyptic number.

540642926 is a deficient number, since it is larger than the sum of its proper divisors (270321466).

540642926 is a wasteful number, since it uses less digits than its factorization.

540642926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270321465.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 540642926 is about 23251.7295270696. The cubic root of 540642926 is about 814.6483363704.

The spelling of 540642926 in words is "five hundred forty million, six hundred forty-two thousand, nine hundred twenty-six".