12401288 has 8 divisors (see below), whose sum is σ = 23252430. Its totient is φ = 6200640.

The previous prime is 12401287. The next prime is 12401293. The reversal of 12401288 is 88210421.

12401288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 24964 = 3518^2 + 158^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775073 + ... + 775088.

Almost surely, 2^12401288 is an apocalyptic number.

It is an amenable number.

12401288 is a deficient number, since it is larger than the sum of its proper divisors (10851142).

12401288 is a wasteful number, since it uses less digits than its factorization.

12401288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550167 (or 1550163 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12401288 is about 3521.5462512936. The cubic root of 12401288 is about 231.4669191286.

The spelling of 12401288 in words is "twelve million, four hundred one thousand, two hundred eighty-eight".