54021384 has 64 divisors (see below), whose sum is σ = 150681600. Its totient is φ = 17932608.

The previous prime is 54021379. The next prime is 54021391. The reversal of 54021384 is 48312045.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82402 + ... + 83054.

It is an arithmetic number, because the mean of its divisors is an integer number (2354400).

Almost surely, 2^54021384 is an apocalyptic number.

54021384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54021384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75340800).

54021384 is an abundant number, since it is smaller than the sum of its proper divisors (96660216).

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

54021384 is a wasteful number, since it uses less digits than its factorization.

54021384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 54021384 is about 7349.9240812406. The cubic root of 54021384 is about 378.0262012576.

It can be divided in two parts, 5402 and 1384, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 54021384 in words is "fifty-four million, twenty-one thousand, three hundred eighty-four".