54789040 has 40 divisors (see below), whose sum is σ = 128340000. Its totient is φ = 21751296.

The previous prime is 54789019. The next prime is 54789073. The reversal of 54789040 is 4098745.

It is a tau number, because it is divible by the number of its divisors (40).

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, 8461 + ... + 13459.

It is an arithmetic number, because the mean of its divisors is an integer number (3208500).

Almost surely, 2^54789040 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 54789040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64170000).

54789040 is an abundant number, since it is smaller than the sum of its proper divisors (73550960).

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

54789040 is a wasteful number, since it uses less digits than its factorization.

54789040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149 (or 5143 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 54789040 is about 7401.9619020906. The cubic root of 54789040 is about 379.8083983293.

The spelling of 54789040 in words is "fifty-four million, seven hundred eighty-nine thousand, forty".