54738138 has 64 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 13934592.

The previous prime is 54738119. The next prime is 54738139. The reversal of 54738138 is 83183745.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 54738096 and 54738105.

It is not an unprimeable number, because it can be changed into a prime (54738139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14106 + ... + 17562.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^54738138 is an apocalyptic number.

54738138 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 54738138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69713280).

54738138 is an abundant number, since it is smaller than the sum of its proper divisors (84688422).

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

54738138 is a wasteful number, since it uses less digits than its factorization.

54738138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511.

The product of its digits is 80640, while the sum is 39.

The square root of 54738138 is about 7398.5226903754. The cubic root of 54738138 is about 379.6907409942.

The spelling of 54738138 in words is "fifty-four million, seven hundred thirty-eight thousand, one hundred thirty-eight".