4003221432 has 32 divisors (see below), whose sum is σ = 11437776000. Its totient is φ = 1143777504.

The previous prime is 4003221419. The next prime is 4003221463. The reversal of 4003221432 is 2341223004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 4003221399 and 4003221408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11914182 + ... + 11914517.

It is an arithmetic number, because the mean of its divisors is an integer number (357430500).

Almost surely, 2^4003221432 is an apocalyptic number.

4003221432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4003221432 is an abundant number, since it is smaller than the sum of its proper divisors (7434554568).

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

4003221432 is a wasteful number, since it uses less digits than its factorization.

4003221432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23828715 (or 23828711 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4003221432 is about 63271.0157339046. The cubic root of 4003221432 is about 1587.8270796659.

Adding to 4003221432 its reverse (2341223004), we get a palindrome (6344444436).

The spelling of 4003221432 in words is "four billion, three million, two hundred twenty-one thousand, four hundred thirty-two".