2100432 has 20 divisors (see below), whose sum is σ = 5426240. Its totient is φ = 700128.

The previous prime is 2100409. The next prime is 2100451. The reversal of 2100432 is 2340012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 21832 + ... + 21927.

It is an arithmetic number, because the mean of its divisors is an integer number (271312).

2^2100432 is an apocalyptic number.

It is an amenable number.

2100432 is an abundant number, since it is smaller than the sum of its proper divisors (3325808).

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

2100432 is a wasteful number, since it uses less digits than its factorization.

2100432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43770 (or 43764 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2100432 is about 1449.2867211149. The cubic root of 2100432 is about 128.0666970110.

Adding to 2100432 its reverse (2340012), we get a palindrome (4440444).

The spelling of 2100432 in words is "two million, one hundred thousand, four hundred thirty-two".