53394228 has 60 divisors (see below), whose sum is σ = 140398720. Its totient is φ = 17694288.

The previous prime is 53394223. The next prime is 53394239. The reversal of 53394228 is 82249335.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53394192 and 53394201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53394221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71883 + ... + 72621.

Almost surely, 2^53394228 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 53394228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70199360).

53394228 is an abundant number, since it is smaller than the sum of its proper divisors (87004492).

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

53394228 is a wasteful number, since it uses less digits than its factorization.

53394228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 967 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 53394228 is about 7307.1354168374. The cubic root of 53394228 is about 376.5576172516.

The spelling of 53394228 in words is "fifty-three million, three hundred ninety-four thousand, two hundred twenty-eight".