4521632 has 12 divisors (see below), whose sum is σ = 8902026. Its totient is φ = 2260800.

The previous prime is 4521631. The next prime is 4521637. The reversal of 4521632 is 2361254.

It can be written as a sum of positive squares in only one way, i.e., 2572816 + 1948816 = 1604^2 + 1396^2 .

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 = 4521598 and 4521607.

It is not an unprimeable number, because it can be changed into a prime (4521631) by changing a digit.

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, 70619 + ... + 70682.

Almost surely, 2^4521632 is an apocalyptic number.

It is an amenable number.

4521632 is a deficient number, since it is larger than the sum of its proper divisors (4380394).

4521632 is a wasteful number, since it uses less digits than its factorization.

4521632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141311 (or 141303 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 4521632 is about 2126.4129420223. The cubic root of 4521632 is about 165.3604851927.

Adding to 4521632 its reverse (2361254), we get a palindrome (6882886).

The spelling of 4521632 in words is "four million, five hundred twenty-one thousand, six hundred thirty-two".