4381632 has 42 divisors (see below), whose sum is σ = 12560808. Its totient is φ = 1460352.

The previous prime is 4381607. The next prime is 4381667. The reversal of 4381632 is 2361834.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4381596 and 4381605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3228 + ... + 4379.

Almost surely, 2^4381632 is an apocalyptic number.

It is an amenable number.

4381632 is an abundant number, since it is smaller than the sum of its proper divisors (8179176).

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

4381632 is a wasteful number, since it uses less digits than its factorization.

4381632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625 (or 7612 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 4381632 is about 2093.2348172147. The cubic root of 4381632 is about 163.6359164971.

The spelling of 4381632 in words is "four million, three hundred eighty-one thousand, six hundred thirty-two".