54402220 has 24 divisors (see below), whose sum is σ = 114405984. Its totient is φ = 21730176.

The previous prime is 54402211. The next prime is 54402233. The reversal of 54402220 is 2220445.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17289 + ... + 20191.

It is an arithmetic number, because the mean of its divisors is an integer number (4766916).

Almost surely, 2^54402220 is an apocalyptic number.

It is an amenable number.

54402220 is an abundant number, since it is smaller than the sum of its proper divisors (60003764).

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

54402220 is a wasteful number, since it uses less digits than its factorization.

54402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 54402220 is about 7375.7860598041. The cubic root of 54402220 is about 378.9124490579.

Adding to 54402220 its reverse (2220445), we get a palindrome (56622665).

The spelling of 54402220 in words is "fifty-four million, four hundred two thousand, two hundred twenty".