54129240 has 96 divisors (see below), whose sum is σ = 191926800. Its totient is φ = 13121280.

The previous prime is 54129227. The next prime is 54129247. The reversal of 54129240 is 4292145.

54129240 is a `hidden beast` number, since 5 + 412 + 9 + 240 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54129247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2875 + ... + 10794.

Almost surely, 2^54129240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54129240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95963400).

54129240 is an abundant number, since it is smaller than the sum of its proper divisors (137797560).

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

54129240 is a wasteful number, since it uses less digits than its factorization.

54129240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13697 (or 13690 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 54129240 is about 7357.2576412682. The cubic root of 54129240 is about 378.2776158296.

The spelling of 54129240 in words is "fifty-four million, one hundred twenty-nine thousand, two hundred forty".