12238590 has 64 divisors (see below), whose sum is σ = 36158976. Its totient is φ = 2581632.

The previous prime is 12238559. The next prime is 12238591. The reversal of 12238590 is 9583221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489 + ... + 4971.

It is an arithmetic number, because the mean of its divisors is an integer number (564984).

Almost surely, 2^12238590 is an apocalyptic number.

12238590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12238590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18079488).

12238590 is an abundant number, since it is smaller than the sum of its proper divisors (23920386).

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

12238590 is a wasteful number, since it uses less digits than its factorization.

12238590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12238590 is about 3498.3696202660. The cubic root of 12238590 is about 230.4502208353.

The spelling of 12238590 in words is "twelve million, two hundred thirty-eight thousand, five hundred ninety".