540505442 has 16 divisors (see below), whose sum is σ = 836969760. Its totient is φ = 261627072.

The previous prime is 540505421. The next prime is 540505453. The reversal of 540505442 is 244505045.

It is a super-2 number, since 2×540505442² = 584292265663230728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18092 + ... + 37527.

It is an arithmetic number, because the mean of its divisors is an integer number (52310610).

Almost surely, 2^540505442 is an apocalyptic number.

540505442 is a deficient number, since it is larger than the sum of its proper divisors (296464318).

540505442 is a wasteful number, since it uses less digits than its factorization.

540505442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55777.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 540505442 is about 23248.7729138550. The cubic root of 540505442 is about 814.5792762436.

The spelling of 540505442 in words is "five hundred forty million, five hundred five thousand, four hundred forty-two".