12732401 has 4 divisors (see below), whose sum is σ = 13889904. Its totient is φ = 11574900.

The previous prime is 12732389. The next prime is 12732407. The reversal of 12732401 is 10423721.

12732401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12732401 is a prime.

It is a super-2 number, since 2×12732401² = 324228070449602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12732407) 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, 578735 + ... + 578756.

It is an arithmetic number, because the mean of its divisors is an integer number (3472476).

Almost surely, 2^12732401 is an apocalyptic number.

12732401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12732401 is a deficient number, since it is larger than the sum of its proper divisors (1157503).

12732401 is a wasteful number, since it uses less digits than its factorization.

12732401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157502.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12732401 is about 3568.2490103691. The cubic root of 12732401 is about 233.5088989329.

The spelling of 12732401 in words is "twelve million, seven hundred thirty-two thousand, four hundred one".