12453642 has 32 divisors (see below), whose sum is σ = 27831360. Its totient is φ = 4127760.

The previous prime is 12453631. The next prime is 12453647. The reversal of 12453642 is 24635421.

12453642 is a `hidden beast` number, since 12 + 4 + 5 + 3 + 642 = 666.

It is a super-3 number, since 3×12453642³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12453647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10848 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (869730).

Almost surely, 2^12453642 is an apocalyptic number.

12453642 is an abundant number, since it is smaller than the sum of its proper divisors (15377718).

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

12453642 is a wasteful number, since it uses less digits than its factorization.

12453642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1309 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 12453642 is about 3528.9718049313. The cubic root of 12453642 is about 231.7921865786.

The spelling of 12453642 in words is "twelve million, four hundred fifty-three thousand, six hundred forty-two".