4000432 has 10 divisors (see below), whose sum is σ = 7750868. Its totient is φ = 2000208.

The previous prime is 4000379. The next prime is 4000439. The reversal of 4000432 is 2340004.

It is not an unprimeable number, because it can be changed into a prime (4000439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124998 + ... + 125029.

Almost surely, 2^4000432 is an apocalyptic number.

It is an amenable number.

4000432 is a deficient number, since it is larger than the sum of its proper divisors (3750436).

4000432 is a wasteful number, since it uses less digits than its factorization.

4000432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250035 (or 250029 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 4000432 is about 2000.1079970842. The cubic root of 4000432 is about 158.7458196349.

Adding to 4000432 its reverse (2340004), we get a palindrome (6340436).

It can be divided in two parts, 4000 and 432, that multiplied together give a cube (1728000 = 120³).

The spelling of 4000432 in words is "four million, four hundred thirty-two", and thus it is an aban number.