234213403 has 6 divisors (see below), whose sum is σ = 248801396. Its totient is φ = 220435872.

The previous prime is 234213391. The next prime is 234213409. The reversal of 234213403 is 304312432.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-234213403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234213409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404925 + ... + 405502.

Almost surely, 2^234213403 is an apocalyptic number.

234213403 is a deficient number, since it is larger than the sum of its proper divisors (14587993).

234213403 is an equidigital number, since it uses as much as digits as its factorization.

234213403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810461 (or 810444 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 234213403 is about 15304.0322464375. The cubic root of 234213403 is about 616.4112855689.

Adding to 234213403 its reverse (304312432), we get a palindrome (538525835).

The spelling of 234213403 in words is "two hundred thirty-four million, two hundred thirteen thousand, four hundred three".