12400234 has 24 divisors (see below), whose sum is σ = 23606208. Its totient is φ = 4830840.

The previous prime is 12400231. The next prime is 12400237. The reversal of 12400234 is 43200421.

It is an interprime number because it is at equal distance from previous prime (12400231) and next prime (12400237).

It is not an unprimeable number, because it can be changed into a prime (12400231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4674 + ... + 6829.

It is an arithmetic number, because the mean of its divisors is an integer number (983592).

Almost surely, 2^12400234 is an apocalyptic number.

12400234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12400234 is a deficient number, since it is larger than the sum of its proper divisors (11205974).

12400234 is a wasteful number, since it uses less digits than its factorization.

12400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530 (or 11523 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12400234 is about 3521.3965979424. The cubic root of 12400234 is about 231.4603613946.

Adding to 12400234 its reverse (43200421), we get a palindrome (55600655).

The spelling of 12400234 in words is "twelve million, four hundred thousand, two hundred thirty-four".