540404199 has 12 divisors (see below), whose sum is σ = 780894712. Its totient is φ = 360126000.

The previous prime is 540404141. The next prime is 540404243. The reversal of 540404199 is 991404045.

It is a happy number.

It is not a de Polignac number, because 540404199 - 2⁷ = 540404071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540404399) 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, 15129 + ... + 36189.

Almost surely, 2^540404199 is an apocalyptic number.

540404199 is a deficient number, since it is larger than the sum of its proper divisors (240490513).

540404199 is a wasteful number, since it uses less digits than its factorization.

540404199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23918 (or 23915 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 540404199 is about 23246.5954281482. The cubic root of 540404199 is about 814.5284129880.

The spelling of 540404199 in words is "five hundred forty million, four hundred four thousand, one hundred ninety-nine".