234421225 has 24 divisors (see below), whose sum is σ = 302480640. Its totient is φ = 180024000.

The previous prime is 234421217. The next prime is 234421237. The reversal of 234421225 is 522124432.

It is not a de Polignac number, because 234421225 - 2³ = 234421217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 234421225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100371 + ... + 102679.

It is an arithmetic number, because the mean of its divisors is an integer number (12603360).

Almost surely, 2^234421225 is an apocalyptic number.

234421225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

234421225 is a deficient number, since it is larger than the sum of its proper divisors (68059415).

234421225 is a wasteful number, since it uses less digits than its factorization.

234421225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2476 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 234421225 is about 15310.8205201420. The cubic root of 234421225 is about 616.5935494837.

Adding to 234421225 its reverse (522124432), we get a palindrome (756545657).

It can be divided in two parts, 234421 and 225, that multiplied together give a palindrome (52744725).

The spelling of 234421225 in words is "two hundred thirty-four million, four hundred twenty-one thousand, two hundred twenty-five".