7321272732 has 36 divisors (see below), whose sum is σ = 19006731016. Its totient is φ = 2374466400.

The previous prime is 7321272731. The next prime is 7321272733. The reversal of 7321272732 is 2372721237.

It is an interprime number because it is at equal distance from previous prime (7321272731) and next prime (7321272733).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321272731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2746894 + ... + 2749557.

Almost surely, 2^7321272732 is an apocalyptic number.

It is an amenable number.

7321272732 is an abundant number, since it is smaller than the sum of its proper divisors (11685458284).

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

7321272732 is a wasteful number, since it uses less digits than its factorization.

7321272732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496498 (or 5496493 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 7321272732 is about 85564.4361402563. The cubic root of 7321272732 is about 1941.7599019136.

Adding to 7321272732 its reverse (2372721237), we get a palindrome (9693993969).

The spelling of 7321272732 in words is "seven billion, three hundred twenty-one million, two hundred seventy-two thousand, seven hundred thirty-two".