54440840 has 16 divisors (see below), whose sum is σ = 122491980. Its totient is φ = 21776320.

The previous prime is 54440809. The next prime is 54440863. The reversal of 54440840 is 4804445.

It can be written as a sum of positive squares in 2 ways, for example, as 48080356 + 6360484 = 6934^2 + 2522^2 .

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, 680471 + ... + 680550.

Almost surely, 2^54440840 is an apocalyptic number.

It is an amenable number.

54440840 is an abundant number, since it is smaller than the sum of its proper divisors (68051140).

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

54440840 is a wasteful number, since it uses less digits than its factorization.

54440840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361032 (or 1361028 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 54440840 is about 7378.4036213804. The cubic root of 54440840 is about 379.0020908492.

The spelling of 54440840 in words is "fifty-four million, four hundred forty thousand, eight hundred forty".