54864440 has 32 divisors (see below), whose sum is σ = 130708080. Its totient is φ = 20654592.

The previous prime is 54864421. The next prime is 54864449. The reversal of 54864440 is 4446845.

It is a self number, because there is not a number n which added to its sum of digits gives 54864440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54864449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39662 + ... + 41021.

Almost surely, 2^54864440 is an apocalyptic number.

It is an amenable number.

54864440 is an abundant number, since it is smaller than the sum of its proper divisors (75843640).

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

54864440 is a wasteful number, since it uses less digits than its factorization.

54864440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80711 (or 80707 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 54864440 is about 7407.0533952443. The cubic root of 54864440 is about 379.9825476749.

The spelling of 54864440 in words is "fifty-four million, eight hundred sixty-four thousand, four hundred forty".