4001432 has 8 divisors (see below), whose sum is σ = 7502700. Its totient is φ = 2000712.

The previous prime is 4001411. The next prime is 4001453. The reversal of 4001432 is 2341004.

4001432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4001411) and next prime (4001453).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4001432² = 32022916101248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250082 + ... + 250097.

Almost surely, 2^4001432 is an apocalyptic number.

It is an amenable number.

4001432 is a deficient number, since it is larger than the sum of its proper divisors (3501268).

4001432 is a wasteful number, since it uses less digits than its factorization.

4001432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500185 (or 500181 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4001432 is about 2000.3579679647. The cubic root of 4001432 is about 158.7590459226.

Adding to 4001432 its reverse (2341004), we get a palindrome (6342436).

The spelling of 4001432 in words is "four million, one thousand, four hundred thirty-two".