225022028 has 24 divisors (see below), whose sum is σ = 490957824. Its totient is φ = 87670800.

The previous prime is 225022027. The next prime is 225022043. The reversal of 225022028 is 820220522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225021994 and 225022012.

It is not an unprimeable number, because it can be changed into a prime (225022027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364988 + ... + 365603.

It is an arithmetic number, because the mean of its divisors is an integer number (20456576).

Almost surely, 2^225022028 is an apocalyptic number.

225022028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225022028 is an abundant number, since it is smaller than the sum of its proper divisors (265935796).

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

225022028 is a wasteful number, since it uses less digits than its factorization.

225022028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730613 (or 730611 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 225022028 is about 15000.7342486960. The cubic root of 225022028 is about 608.2400476127.

The spelling of 225022028 in words is "two hundred twenty-five million, twenty-two thousand, twenty-eight".