4021632 has 48 divisors (see below), whose sum is σ = 11575980. Its totient is φ = 1340160.

The previous prime is 4021627. The next prime is 4021651. The reversal of 4021632 is 2361204.

It is a happy number.

4021632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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

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 in 5 ways as a sum of consecutive naturals, for example, 594 + ... + 2897.

Almost surely, 2^4021632 is an apocalyptic number.

It is an amenable number.

4021632 is an abundant number, since it is smaller than the sum of its proper divisors (7554348).

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

4021632 is a wasteful number, since it uses less digits than its factorization.

4021632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511 (or 3496 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4021632 is about 2005.4007080880. The cubic root of 4021632 is about 159.0257463944.

Adding to 4021632 its reverse (2361204), we get a palindrome (6382836).

The spelling of 4021632 in words is "four million, twenty-one thousand, six hundred thirty-two".