540794640 has 40 divisors (see below), whose sum is σ = 1676464128. Its totient is φ = 144211840.

The previous prime is 540794629. The next prime is 540794647. The reversal of 540794640 is 46497045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (540794647) 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, 1126416 + ... + 1126895.

Almost surely, 2^540794640 is an apocalyptic number.

It is an amenable number.

540794640 is an abundant number, since it is smaller than the sum of its proper divisors (1135669488).

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

540794640 is a wasteful number, since it uses less digits than its factorization.

540794640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253327 (or 2253321 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 540794640 is about 23254.9917222088. The cubic root of 540794640 is about 814.7245308374.

The spelling of 540794640 in words is "five hundred forty million, seven hundred ninety-four thousand, six hundred forty".