54289940 has 24 divisors (see below), whose sum is σ = 114254280. Its totient is φ = 21669248.

The previous prime is 54289933. The next prime is 54289979. The reversal of 54289940 is 4998245.

It can be written as a sum of positive squares in 4 ways, for example, as 30980356 + 23309584 = 5566^2 + 4828^2 .

It is a congruent number.

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, 7514 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (4760595).

Almost surely, 2^54289940 is an apocalyptic number.

It is an amenable number.

54289940 is an abundant number, since it is smaller than the sum of its proper divisors (59964340).

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

54289940 is a wasteful number, since it uses less digits than its factorization.

54289940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851 (or 5849 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 54289940 is about 7368.1707363497. The cubic root of 54289940 is about 378.6515921036.

The spelling of 54289940 in words is "fifty-four million, two hundred eighty-nine thousand, nine hundred forty".