12642454 has 8 divisors (see below), whose sum is σ = 20687688. Its totient is φ = 5746560.

The previous prime is 12642437. The next prime is 12642457. The reversal of 12642454 is 45424621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287307 + ... + 287350.

It is an arithmetic number, because the mean of its divisors is an integer number (2585961).

Almost surely, 2^12642454 is an apocalyptic number.

12642454 is a deficient number, since it is larger than the sum of its proper divisors (8045234).

12642454 is a wasteful number, since it uses less digits than its factorization.

12642454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574670.

The product of its digits is 7680, while the sum is 28.

The square root of 12642454 is about 3555.6228708906. The cubic root of 12642454 is about 232.9577308552.

The spelling of 12642454 in words is "twelve million, six hundred forty-two thousand, four hundred fifty-four".