54040140240 has 40 divisors (see below), whose sum is σ = 167524435488. Its totient is φ = 14410704000.

The previous prime is 54040140229. The next prime is 54040140257. The reversal of 54040140240 is 4204104045.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 54040140240.

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, 112583386 + ... + 112583865.

Almost surely, 2^54040140240 is an apocalyptic number.

It is an amenable number.

54040140240 is an abundant number, since it is smaller than the sum of its proper divisors (113484295248).

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

54040140240 is a wasteful number, since it uses less digits than its factorization.

54040140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225167267 (or 225167261 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 54040140240 its reverse (4204104045), we get a palindrome (58244244285).

The spelling of 54040140240 in words is "fifty-four billion, forty million, one hundred forty thousand, two hundred forty".