54642784 has 96 divisors (see below), whose sum is σ = 133297920. Its totient is φ = 21523968.

The previous prime is 54642773. The next prime is 54642787. The reversal of 54642784 is 48724645.

It is a happy number.

Its product of digits (215040) is a multiple of the sum of its prime factors (420).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54642787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157299 + ... + 157645.

It is an arithmetic number, because the mean of its divisors is an integer number (1388520).

Almost surely, 2^54642784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54642784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66648960).

54642784 is an abundant number, since it is smaller than the sum of its proper divisors (78655136).

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

54642784 is a wasteful number, since it uses less digits than its factorization.

54642784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 412 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 54642784 is about 7392.0757571876. The cubic root of 54642784 is about 379.4701387127.

The spelling of 54642784 in words is "fifty-four million, six hundred forty-two thousand, seven hundred eighty-four".