12071432 has 8 divisors (see below), whose sum is σ = 22633950. Its totient is φ = 6035712.

The previous prime is 12071429. The next prime is 12071443. The reversal of 12071432 is 23417021.

It can be written as a sum of positive squares in only one way, i.e., 11600836 + 470596 = 3406^2 + 686^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 754457 + ... + 754472.

Almost surely, 2^12071432 is an apocalyptic number.

It is an amenable number.

12071432 is a deficient number, since it is larger than the sum of its proper divisors (10562518).

12071432 is a wasteful number, since it uses less digits than its factorization.

12071432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508935 (or 1508931 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12071432 is about 3474.3966382669. The cubic root of 12071432 is about 229.3962235879.

Adding to 12071432 its reverse (23417021), we get a palindrome (35488453).

The spelling of 12071432 in words is "twelve million, seventy-one thousand, four hundred thirty-two".