12451842 has 48 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 3792096.

The previous prime is 12451841. The next prime is 12451843. The reversal of 12451842 is 24815421.

It is an interprime number because it is at equal distance from previous prime (12451841) and next prime (12451843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29509 + ... + 29927.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^12451842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12451842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14676480).

12451842 is an abundant number, since it is smaller than the sum of its proper divisors (16901118).

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

12451842 is a wasteful number, since it uses less digits than its factorization.

12451842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 564 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12451842 is about 3528.7167639242. The cubic root of 12451842 is about 231.7810185996.

The spelling of 12451842 in words is "twelve million, four hundred fifty-one thousand, eight hundred forty-two".