54138938 has 16 divisors (see below), whose sum is σ = 93404544. Its totient is φ = 23053680.

The previous prime is 54138919. The next prime is 54138947. The reversal of 54138938 is 83983145.

It is a junction number, because it is equal to n+sod(n) for n = 54138895 and 54138904.

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, 10118 + ... + 14513.

It is an arithmetic number, because the mean of its divisors is an integer number (5837784).

Almost surely, 2^54138938 is an apocalyptic number.

54138938 is a deficient number, since it is larger than the sum of its proper divisors (39265606).

54138938 is a wasteful number, since it uses less digits than its factorization.

54138938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24797.

The product of its digits is 103680, while the sum is 41.

The square root of 54138938 is about 7357.9166888461. The cubic root of 54138938 is about 378.3002056982.

The spelling of 54138938 in words is "fifty-four million, one hundred thirty-eight thousand, nine hundred thirty-eight".