54239724 has 144 divisors (see below), whose sum is σ = 181149696. Its totient is φ = 13248000.

The previous prime is 54239693. The next prime is 54239729. The reversal of 54239724 is 42793245.

54239724 is a `hidden beast` number, since 542 + 3 + 97 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (54239729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46549 + ... + 47699.

It is an arithmetic number, because the mean of its divisors is an integer number (1257984).

Almost surely, 2^54239724 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 54239724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90574848).

54239724 is an abundant number, since it is smaller than the sum of its proper divisors (126909972).

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

54239724 is a wasteful number, since it uses less digits than its factorization.

54239724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1191 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 54239724 is about 7364.7623179570. The cubic root of 54239724 is about 378.5348102844.

It can be divided in two parts, 54 and 239724, that added together give a triangular number (239778 = T₆₉₂).

The spelling of 54239724 in words is "fifty-four million, two hundred thirty-nine thousand, seven hundred twenty-four".