2128432 has 20 divisors (see below), whose sum is σ = 4158216. Its totient is φ = 1055360.

The previous prime is 2128409. The next prime is 2128439. The reversal of 2128432 is 2348212.

It is not an unprimeable number, because it can be changed into a prime (2128439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707 + ... + 2677.

2^2128432 is an apocalyptic number.

It is an amenable number.

2128432 is a deficient number, since it is larger than the sum of its proper divisors (2029784).

2128432 is a wasteful number, since it uses less digits than its factorization.

2128432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1110 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2128432 is about 1458.9146650850. The cubic root of 2128432 is about 128.6332551557.

It can be divided in two parts, 21284 and 32, that added together give a square (21316 = 146²).

The spelling of 2128432 in words is "two million, one hundred twenty-eight thousand, four hundred thirty-two".