540991446 has 16 divisors (see below), whose sum is σ = 1138929600. Its totient is φ = 170839368.

The previous prime is 540991421. The next prime is 540991453. The reversal of 540991446 is 644199045.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 540991398 and 540991407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2372656 + ... + 2372883.

It is an arithmetic number, because the mean of its divisors is an integer number (71183100).

Almost surely, 2^540991446 is an apocalyptic number.

540991446 is an abundant number, since it is smaller than the sum of its proper divisors (597938154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540991446 is a wasteful number, since it uses less digits than its factorization.

540991446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745563.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 540991446 is about 23259.2228159068. Note that the first 3 decimals coincide. The cubic root of 540991446 is about 814.8233503753.

The spelling of 540991446 in words is "five hundred forty million, nine hundred ninety-one thousand, four hundred forty-six".