540002691 has 12 divisors (see below), whose sum is σ = 780539760. Its totient is φ = 359754480.

The previous prime is 540002689. The next prime is 540002713. The reversal of 540002691 is 196200045.

It is not a de Polignac number, because 540002691 - 2¹ = 540002689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540002621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6256 + ... + 33453.

It is an arithmetic number, because the mean of its divisors is an integer number (65044980).

Almost surely, 2^540002691 is an apocalyptic number.

540002691 is a deficient number, since it is larger than the sum of its proper divisors (240537069).

540002691 is a wasteful number, since it uses less digits than its factorization.

540002691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41226 (or 41223 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 540002691 is about 23237.9579782734. The cubic root of 540002691 is about 814.3266376610.

The spelling of 540002691 in words is "five hundred forty million, two thousand, six hundred ninety-one".