7211438445 has 8 divisors (see below), whose sum is σ = 11538301536. Its totient is φ = 3846100496.

The previous prime is 7211438441. The next prime is 7211438459. The reversal of 7211438445 is 5448341127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7211438445 - 2² = 7211438441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211438441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240381267 + ... + 240381296.

It is an arithmetic number, because the mean of its divisors is an integer number (1442287692).

Almost surely, 2^7211438445 is an apocalyptic number.

It is an amenable number.

7211438445 is a deficient number, since it is larger than the sum of its proper divisors (4326863091).

7211438445 is a wasteful number, since it uses less digits than its factorization.

7211438445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480762571.

The product of its digits is 107520, while the sum is 39.

The square root of 7211438445 is about 84920.1886773693. The cubic root of 7211438445 is about 1932.0007927396. Note that the first 3 decimals are identical.

The spelling of 7211438445 in words is "seven billion, two hundred eleven million, four hundred thirty-eight thousand, four hundred forty-five".