54459378 has 40 divisors (see below), whose sum is σ = 123036672. Its totient is φ = 18003384.

The previous prime is 54459373. The next prime is 54459401. The reversal of 54459378 is 87395445.

54459378 is a `hidden beast` number, since 54 + 4 + 593 + 7 + 8 = 666.

It is a super-4 number, since 4×54459378⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54459373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19251 + ... + 21897.

Almost surely, 2^54459378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54459378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61518336).

54459378 is an abundant number, since it is smaller than the sum of its proper divisors (68577294).

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

54459378 is a wasteful number, since it uses less digits than its factorization.

54459378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788 (or 2779 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 54459378 is about 7379.6597482540. The cubic root of 54459378 is about 379.0451047792.

The spelling of 54459378 in words is "fifty-four million, four hundred fifty-nine thousand, three hundred seventy-eight".