2123432 has 16 divisors (see below), whose sum is σ = 3997140. Its totient is φ = 1057536.

The previous prime is 2123423. The next prime is 2123461. The reversal of 2123432 is 2343212.

2123432 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 649636 = 1214^2 + 806^2 .

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2123432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158 + ... + 3770.

2^2123432 is an apocalyptic number.

It is an amenable number.

2123432 is a deficient number, since it is larger than the sum of its proper divisors (1873708).

2123432 is a wasteful number, since it uses less digits than its factorization.

2123432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1048 counting only the distinct ones).

The product of its digits is 288, while the sum is 17.

The square root of 2123432 is about 1457.2000548998. The cubic root of 2123432 is about 128.5324500302.

Adding to 2123432 its reverse (2343212), we get a palindrome (4466644).

The spelling of 2123432 in words is "two million, one hundred twenty-three thousand, four hundred thirty-two".