12402250452 has 18 divisors (see below), whose sum is σ = 31350133178. Its totient is φ = 4134083472.

The previous prime is 12402250411. The next prime is 12402250489. The reversal of 12402250452 is 25405220421.

12402250452 is a `hidden beast` number, since 1 + 2 + 402 + 250 + 4 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8903054736 + 3499195716 = 94356^2 + 59154^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172253443 + ... + 172253514.

Almost surely, 2^12402250452 is an apocalyptic number.

12402250452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12402250452 is an abundant number, since it is smaller than the sum of its proper divisors (18947882726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12402250452 is a wasteful number, since it uses less digits than its factorization.

12402250452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344506967 (or 344506962 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 12402250452 its reverse (25405220421), we get a palindrome (37807470873).

The spelling of 12402250452 in words is "twelve billion, four hundred two million, two hundred fifty thousand, four hundred fifty-two".