54243738 has 48 divisors (see below), whose sum is σ = 124330752. Its totient is φ = 17064000.

The previous prime is 54243733. The next prime is 54243793. The reversal of 54243738 is 83734245.

It is a happy number.

54243738 is a `hidden beast` number, since 542 + 43 + 73 + 8 = 666.

It is a super-2 number, since 2×54243738² = 5884766224425288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54243731) 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, 21693 + ... + 24063.

It is an arithmetic number, because the mean of its divisors is an integer number (2590224).

Almost surely, 2^54243738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54243738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62165376).

54243738 is an abundant number, since it is smaller than the sum of its proper divisors (70087014).

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

54243738 is a wasteful number, since it uses less digits than its factorization.

54243738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2448 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 54243738 is about 7365.0348268016. The cubic root of 54243738 is about 378.5441478519.

The spelling of 54243738 in words is "fifty-four million, two hundred forty-three thousand, seven hundred thirty-eight".