12401598 has 32 divisors (see below), whose sum is σ = 27724032. Its totient is φ = 3665600.

The previous prime is 12401593. The next prime is 12401671. The reversal of 12401598 is 89510421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (866376).

Almost surely, 2^12401598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13862016).

12401598 is an abundant number, since it is smaller than the sum of its proper divisors (15322434).

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

12401598 is a wasteful number, since it uses less digits than its factorization.

12401598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12401598 is about 3521.5902657748. The cubic root of 12401598 is about 231.4688478032.

The spelling of 12401598 in words is "twelve million, four hundred one thousand, five hundred ninety-eight".