54022440 has 64 divisors (see below), whose sum is σ = 162984960. Its totient is φ = 14324480.

The previous prime is 54022439. The next prime is 54022487. The reversal of 54022440 is 4422045.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21742 + ... + 24098.

It is an arithmetic number, because the mean of its divisors is an integer number (2546640).

Almost surely, 2^54022440 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 54022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81492480).

54022440 is an abundant number, since it is smaller than the sum of its proper divisors (108962520).

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

54022440 is a wasteful number, since it uses less digits than its factorization.

54022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 54022440 is about 7349.9959183662. The cubic root of 54022440 is about 378.0286644369.

Adding to 54022440 its reverse (4422045), we get a palindrome (58444485).

The spelling of 54022440 in words is "fifty-four million, twenty-two thousand, four hundred forty".