7321632 has 48 divisors (see below), whose sum is σ = 19595520. Its totient is φ = 2392832.

The previous prime is 7321627. The next prime is 7321661. The reversal of 7321632 is 2361237.

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 (24).

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 7 ways as a sum of consecutive naturals, for example, 4369 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^7321632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7321632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9797760).

7321632 is an abundant number, since it is smaller than the sum of its proper divisors (12273888).

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

7321632 is a wasteful number, since it uses less digits than its factorization.

7321632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1497 counting only the distinct ones).

The product of its digits is 1512, while the sum is 24.

The square root of 7321632 is about 2705.8514371635. The cubic root of 7321632 is about 194.1791663276.

Adding to 7321632 its reverse (2361237), we get a palindrome (9682869).

The spelling of 7321632 in words is "seven million, three hundred twenty-one thousand, six hundred thirty-two".