540215426 has 16 divisors (see below), whose sum is σ = 878918040. Its totient is φ = 248017920.

The previous prime is 540215411. The next prime is 540215449. The reversal of 540215426 is 624512045.

It can be written as a sum of positive squares in 4 ways, for example, as 244891201 + 295324225 = 15649^2 + 17185^2 .

It is a super-2 number, since 2×540215426² = 583665412976722952, 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, 192371 + ... + 195158.

Almost surely, 2^540215426 is an apocalyptic number.

540215426 is a deficient number, since it is larger than the sum of its proper divisors (338702614).

540215426 is a wasteful number, since it uses less digits than its factorization.

540215426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387589.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 540215426 is about 23242.5348445474. The cubic root of 540215426 is about 814.4335587537.

The spelling of 540215426 in words is "five hundred forty million, two hundred fifteen thousand, four hundred twenty-six".