54408340 has 96 divisors (see below), whose sum is σ = 138991104. Its totient is φ = 17487360.

The previous prime is 54408337. The next prime is 54408377. The reversal of 54408340 is 4380445.

54408340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 54408299 and 54408308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196282 + ... + 196558.

It is an arithmetic number, because the mean of its divisors is an integer number (1447824).

Almost surely, 2^54408340 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 54408340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69495552).

54408340 is an abundant number, since it is smaller than the sum of its proper divisors (84582764).

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

54408340 is a wasteful number, since it uses less digits than its factorization.

54408340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 54408340 is about 7376.2009191724. The cubic root of 54408340 is about 378.9266571621.

Adding to 54408340 its reverse (4380445), we get a palindrome (58788785).

The spelling of 54408340 in words is "fifty-four million, four hundred eight thousand, three hundred forty".