225994860 has 432 divisors, whose sum is σ = 902786976. Its totient is φ = 47029248.

The previous prime is 225994841. The next prime is 225994861. The reversal of 225994860 is 68499522.

225994860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (225994861) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3095784 + ... + 3095856.

Almost surely, 2^225994860 is an apocalyptic number.

225994860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225994860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451393488).

225994860 is an abundant number, since it is smaller than the sum of its proper divisors (676792116).

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

225994860 is a wasteful number, since it uses less digits than its factorization.

225994860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 225994860 is about 15033.1254235438. The cubic root of 225994860 is about 609.1153170451.

The spelling of 225994860 in words is "two hundred twenty-five million, nine hundred ninety-four thousand, eight hundred sixty".