4140432 has 30 divisors (see below), whose sum is σ = 11587862. Its totient is φ = 1380096.

The previous prime is 4140421. The next prime is 4140439. The reversal of 4140432 is 2340414.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 76176 = 2016^2 + 276^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4140439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14233 + ... + 14520.

Almost surely, 2^4140432 is an apocalyptic number.

It is an amenable number.

4140432 is an abundant number, since it is smaller than the sum of its proper divisors (7447430).

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

4140432 is a wasteful number, since it uses less digits than its factorization.

4140432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28767 (or 28758 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4140432 is about 2034.8051503768. The cubic root of 4140432 is about 160.5764622429.

Subtracting from 4140432 its sum of digits (18), we obtain a palindrome (4140414).

Adding to 4140432 its reverse (2340414), we get a palindrome (6480846).

The spelling of 4140432 in words is "four million, one hundred forty thousand, four hundred thirty-two".