54407440 has 40 divisors (see below), whose sum is σ = 128652480. Its totient is φ = 21392256.

The previous prime is 54407407. The next prime is 54407447. The reversal of 54407440 is 4470445.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 54407399 and 54407408.

It is not an unprimeable number, because it can be changed into a prime (54407447) 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, 1044 + ... + 10483.

It is an arithmetic number, because the mean of its divisors is an integer number (3216312).

Almost surely, 2^54407440 is an apocalyptic number.

It is an amenable number.

54407440 is an abundant number, since it is smaller than the sum of its proper divisors (74245040).

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

54407440 is a wasteful number, since it uses less digits than its factorization.

54407440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11599 (or 11593 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 54407440 is about 7376.1399119051. The cubic root of 54407440 is about 378.9245678019.

Adding to 54407440 its reverse (4470445), we get a palindrome (58877885).

It can be divided in two parts, 5440 and 7440, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 54407440 in words is "fifty-four million, four hundred seven thousand, four hundred forty".