12045432 has 32 divisors (see below), whose sum is σ = 34416000. Its totient is φ = 3441504.

The previous prime is 12045427. The next prime is 12045437. The reversal of 12045432 is 23454021.

It is an interprime number because it is at equal distance from previous prime (12045427) and next prime (12045437).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12045399 and 12045408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045437) 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, 35682 + ... + 36017.

It is an arithmetic number, because the mean of its divisors is an integer number (1075500).

Almost surely, 2^12045432 is an apocalyptic number.

12045432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12045432 is an abundant number, since it is smaller than the sum of its proper divisors (22370568).

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

12045432 is a wasteful number, since it uses less digits than its factorization.

12045432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71715 (or 71711 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12045432 is about 3470.6529645011. The cubic root of 12045432 is about 229.2314105260.

Adding to 12045432 its reverse (23454021), we get a palindrome (35499453).

The spelling of 12045432 in words is "twelve million, forty-five thousand, four hundred thirty-two".