12400532 has 24 divisors (see below), whose sum is σ = 22522752. Its totient is φ = 5969600.

The previous prime is 12400517. The next prime is 12400541. The reversal of 12400532 is 23500421.

It is a self number, because there is not a number n which added to its sum of digits gives 12400532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13157 + ... + 14067.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^12400532 is an apocalyptic number.

It is an amenable number.

12400532 is a deficient number, since it is larger than the sum of its proper divisors (10122220).

12400532 is a wasteful number, since it uses less digits than its factorization.

12400532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12400532 is about 3521.4389104456. The cubic root of 12400532 is about 231.4622155165.

Adding to 12400532 its reverse (23500421), we get a palindrome (35900953).

The spelling of 12400532 in words is "twelve million, four hundred thousand, five hundred thirty-two".