540664942 has 16 divisors (see below), whose sum is σ = 845355600. Its totient is φ = 259098048.

The previous prime is 540664921. The next prime is 540664973. The reversal of 540664942 is 249466045.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 540664895 and 540664904.

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, 49567 + ... + 59482.

It is an arithmetic number, because the mean of its divisors is an integer number (52834725).

Almost surely, 2^540664942 is an apocalyptic number.

540664942 is a deficient number, since it is larger than the sum of its proper divisors (304690658).

540664942 is a wasteful number, since it uses less digits than its factorization.

540664942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109155.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 540664942 is about 23252.2029493981. The cubic root of 540664942 is about 814.6593942261.

The spelling of 540664942 in words is "five hundred forty million, six hundred sixty-four thousand, nine hundred forty-two".