540997982 has 32 divisors (see below), whose sum is σ = 977702400. Its totient is φ = 219323808.

The previous prime is 540997967. The next prime is 540997997. The reversal of 540997982 is 289799045.

It is an interprime number because it is at equal distance from previous prime (540997967) and next prime (540997997).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260444 + ... + 262512.

It is an arithmetic number, because the mean of its divisors is an integer number (30553200).

Almost surely, 2^540997982 is an apocalyptic number.

540997982 is a deficient number, since it is larger than the sum of its proper divisors (436704418).

540997982 is a wasteful number, since it uses less digits than its factorization.

540997982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 540997982 is about 23259.3633188873. The cubic root of 540997982 is about 814.8266317975.

The spelling of 540997982 in words is "five hundred forty million, nine hundred ninety-seven thousand, nine hundred eighty-two".