12428892 has 144 divisors (see below), whose sum is σ = 38950912. Its totient is φ = 3265920.

The previous prime is 12428891. The next prime is 12428903. The reversal of 12428892 is 29882421.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (18432) is a multiple of the sum of its prime factors (128).

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289023 + ... + 289065.

Almost surely, 2^12428892 is an apocalyptic number.

12428892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12428892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19475456).

12428892 is an abundant number, since it is smaller than the sum of its proper divisors (26522020).

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

12428892 is a wasteful number, since it uses less digits than its factorization.

12428892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 123 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12428892 is about 3525.4633737993. The cubic root of 12428892 is about 231.6385324310.

The spelling of 12428892 in words is "twelve million, four hundred twenty-eight thousand, eight hundred ninety-two".