540399998 has 32 divisors (see below), whose sum is σ = 860267520. Its totient is φ = 254234880.

The previous prime is 540399989. The next prime is 540400009. The reversal of 540399998 is 899993045.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354065 + ... + 355587.

It is an arithmetic number, because the mean of its divisors is an integer number (26883360).

Almost surely, 2^540399998 is an apocalyptic number.

540399998 is a deficient number, since it is larger than the sum of its proper divisors (319867522).

540399998 is a wasteful number, since it uses less digits than its factorization.

540399998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The square root of 540399998 is about 23246.5050706552. The cubic root of 540399998 is about 814.5263023192.

The spelling of 540399998 in words is "five hundred forty million, three hundred ninety-nine thousand, nine hundred ninety-eight".