540217990 has 16 divisors (see below), whose sum is σ = 1047192048. Its totient is φ = 199465056.

The previous prime is 540217921. The next prime is 540217991. The reversal of 540217990 is 99712045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540217991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077632 + ... + 2077891.

It is an arithmetic number, because the mean of its divisors is an integer number (65449503).

Almost surely, 2^540217990 is an apocalyptic number.

540217990 is a deficient number, since it is larger than the sum of its proper divisors (506974058).

540217990 is a wasteful number, since it uses less digits than its factorization.

540217990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155543.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 540217990 is about 23242.5900019770. The cubic root of 540217990 is about 814.4348472547.

The spelling of 540217990 in words is "five hundred forty million, two hundred seventeen thousand, nine hundred ninety".