54347840 has 28 divisors (see below), whose sum is σ = 129416556. Its totient is φ = 21739008.

The previous prime is 54347833. The next prime is 54347849. The reversal of 54347840 is 4874345.

It can be written as a sum of positive squares in 2 ways, for example, as 15808576 + 38539264 = 3976^2 + 6208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54347840.

It is not an unprimeable number, because it can be changed into a prime (54347849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84599 + ... + 85238.

Almost surely, 2^54347840 is an apocalyptic number.

It is an amenable number.

54347840 is an abundant number, since it is smaller than the sum of its proper divisors (75068716).

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

54347840 is a wasteful number, since it uses less digits than its factorization.

54347840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169854 (or 169844 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 54347840 is about 7372.0987513733. The cubic root of 54347840 is about 378.7861544054.

The spelling of 54347840 in words is "fifty-four million, three hundred forty-seven thousand, eight hundred forty".