12308790 has 64 divisors (see below), whose sum is σ = 32711616. Its totient is φ = 2944512.

The previous prime is 12308759. The next prime is 12308797. The reversal of 12308790 is 9780321.

It is a happy number.

It is a super-2 number, since 2×12308790² = 303012622528200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308797) 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, 14004 + ... + 14856.

It is an arithmetic number, because the mean of its divisors is an integer number (511119).

Almost surely, 2^12308790 is an apocalyptic number.

12308790 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 12308790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16355808).

12308790 is an abundant number, since it is smaller than the sum of its proper divisors (20402826).

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

12308790 is a wasteful number, since it uses less digits than its factorization.

12308790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 12308790 is about 3508.3885189642. The cubic root of 12308790 is about 230.8899984120.

The spelling of 12308790 in words is "twelve million, three hundred eight thousand, seven hundred ninety".