54438678 has 24 divisors (see below), whose sum is σ = 134800848. Its totient is φ = 15553872.

The previous prime is 54438673. The next prime is 54438689. The reversal of 54438678 is 87683445.

54438678 is a `hidden beast` number, since 544 + 38 + 6 + 78 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54438673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215901 + ... + 216152.

It is an arithmetic number, because the mean of its divisors is an integer number (5616702).

Almost surely, 2^54438678 is an apocalyptic number.

54438678 is an abundant number, since it is smaller than the sum of its proper divisors (80362170).

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

54438678 is a wasteful number, since it uses less digits than its factorization.

54438678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432068 (or 432065 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 54438678 is about 7378.2571112696. The cubic root of 54438678 is about 378.9970737006.

The spelling of 54438678 in words is "fifty-four million, four hundred thirty-eight thousand, six hundred seventy-eight".