12398034 has 32 divisors (see below), whose sum is σ = 27786816. Its totient is φ = 3654720.

The previous prime is 12398033. The next prime is 12398039. The reversal of 12398034 is 43089321.

It is a super-2 number, since 2×12398034² = 307422494130312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12397992 and 12398010.

It is not an unprimeable number, because it can be changed into a prime (12398033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (868338).

Almost surely, 2^12398034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12398034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13893408).

12398034 is an abundant number, since it is smaller than the sum of its proper divisors (15388782).

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

12398034 is a wasteful number, since it uses less digits than its factorization.

12398034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12398034 is about 3521.0842080246. The cubic root of 12398034 is about 231.4466723273.

The spelling of 12398034 in words is "twelve million, three hundred ninety-eight thousand, thirty-four".