12428292 has 24 divisors (see below), whose sum is σ = 30705696. Its totient is φ = 3899008.

The previous prime is 12428287. The next prime is 12428293. The reversal of 12428292 is 29282421.

It is not an unprimeable number, because it can be changed into a prime (12428293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30258 + ... + 30665.

It is an arithmetic number, because the mean of its divisors is an integer number (1279404).

Almost surely, 2^12428292 is an apocalyptic number.

12428292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12428292 is an abundant number, since it is smaller than the sum of its proper divisors (18277404).

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

12428292 is a wasteful number, since it uses less digits than its factorization.

12428292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60947 (or 60945 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 12428292 is about 3525.3782775753. The cubic root of 12428292 is about 231.6348049506.

It can be divided in two parts, 12428 and 292, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 12428292 in words is "twelve million, four hundred twenty-eight thousand, two hundred ninety-two".