225692420 has 24 divisors (see below), whose sum is σ = 474393024. Its totient is φ = 90193376.

The previous prime is 225692407. The next prime is 225692429. The reversal of 225692420 is 24296522.

225692420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225692429) 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, 19847 + ... + 29073.

It is an arithmetic number, because the mean of its divisors is an integer number (19766376).

Almost surely, 2^225692420 is an apocalyptic number.

225692420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225692420 is an abundant number, since it is smaller than the sum of its proper divisors (248700604).

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

225692420 is a wasteful number, since it uses less digits than its factorization.

225692420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10459 (or 10457 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 225692420 is about 15023.0629366984. The cubic root of 225692420 is about 608.8434774169.

The spelling of 225692420 in words is "two hundred twenty-five million, six hundred ninety-two thousand, four hundred twenty".