12401669 has 8 divisors (see below), whose sum is σ = 14789760. Its totient is φ = 10167696.

The previous prime is 12401593. The next prime is 12401671. The reversal of 12401669 is 96610421.

12401669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-12401669 is a prime.

It is a super-2 number, since 2×12401669² = 307602787971122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38354 + ... + 38675.

It is an arithmetic number, because the mean of its divisors is an integer number (1848720).

Almost surely, 2^12401669 is an apocalyptic number.

It is an amenable number.

12401669 is a deficient number, since it is larger than the sum of its proper divisors (2388091).

12401669 is an equidigital number, since it uses as much as digits as its factorization.

12401669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77059.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12401669 is about 3521.6003464334. The cubic root of 12401669 is about 231.4692895274.

The spelling of 12401669 in words is "twelve million, four hundred one thousand, six hundred sixty-nine".