12838454 has 4 divisors (see below), whose sum is σ = 19257684. Its totient is φ = 6419226.

The previous prime is 12838429. The next prime is 12838477. The reversal of 12838454 is 45483821.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12838454² = 329651802220232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209612 + ... + 3209615.

It is an arithmetic number, because the mean of its divisors is an integer number (4814421).

Almost surely, 2^12838454 is an apocalyptic number.

12838454 is a deficient number, since it is larger than the sum of its proper divisors (6419230).

12838454 is an equidigital number, since it uses as much as digits as its factorization.

12838454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419229.

The product of its digits is 30720, while the sum is 35.

The square root of 12838454 is about 3583.0788436762. The cubic root of 12838454 is about 234.1554352390.

The spelling of 12838454 in words is "twelve million, eight hundred thirty-eight thousand, four hundred fifty-four".