54644040 has 96 divisors (see below), whose sum is σ = 193752000. Its totient is φ = 13246080.

The previous prime is 54644039. The next prime is 54644053. The reversal of 54644040 is 4044645.

It is a super-2 number, since 2×54644040² = 5971942215043200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54643995 and 54644013.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2940 + ... + 10859.

It is an arithmetic number, because the mean of its divisors is an integer number (2018250).

Almost surely, 2^54644040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54644040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96876000).

54644040 is an abundant number, since it is smaller than the sum of its proper divisors (139107960).

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

54644040 is a wasteful number, since it uses less digits than its factorization.

54644040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13827 (or 13820 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 54644040 is about 7392.1607125387. The cubic root of 54644040 is about 379.4730461466.

Adding to 54644040 its reverse (4044645), we get a palindrome (58688685).

The spelling of 54644040 in words is "fifty-four million, six hundred forty-four thousand, forty".