540857942 has 4 divisors (see below), whose sum is σ = 811286916. Its totient is φ = 270428970.

The previous prime is 540857939. The next prime is 540857953. The reversal of 540857942 is 249758045.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249758045 = 5 ⋅49951609.

It is a junction number, because it is equal to n+sod(n) for n = 540857893 and 540857902.

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, 135214484 + ... + 135214487.

It is an arithmetic number, because the mean of its divisors is an integer number (202821729).

Almost surely, 2^540857942 is an apocalyptic number.

540857942 is a deficient number, since it is larger than the sum of its proper divisors (270428974).

540857942 is a wasteful number, since it uses less digits than its factorization.

540857942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270428973.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 540857942 is about 23256.3527235033. The cubic root of 540857942 is about 814.7563184306.

The spelling of 540857942 in words is "five hundred forty million, eight hundred fifty-seven thousand, nine hundred forty-two".