54380240 has 20 divisors (see below), whose sum is σ = 126434244. Its totient is φ = 21752064.

The previous prime is 54380213. The next prime is 54380273. The reversal of 54380240 is 4208345.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 36096064 = 4276^2 + 6008^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339797 + ... + 339956.

Almost surely, 2^54380240 is an apocalyptic number.

It is an amenable number.

54380240 is an abundant number, since it is smaller than the sum of its proper divisors (72054004).

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

54380240 is a wasteful number, since it uses less digits than its factorization.

54380240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679766 (or 679760 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 54380240 is about 7374.2958985926. The cubic root of 54380240 is about 378.8614118176.

Adding to 54380240 its reverse (4208345), we get a palindrome (58588585).

The spelling of 54380240 in words is "fifty-four million, three hundred eighty thousand, two hundred forty".