7381222 has 4 divisors (see below), whose sum is σ = 11071836. Its totient is φ = 3690610.

The previous prime is 7381217. The next prime is 7381259. The reversal of 7381222 is 2221837.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1845304 + ... + 1845307.

It is an arithmetic number, because the mean of its divisors is an integer number (2767959).

Almost surely, 2^7381222 is an apocalyptic number.

7381222 is a deficient number, since it is larger than the sum of its proper divisors (3690614).

7381222 is a wasteful number, since it uses less digits than its factorization.

7381222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690613.

The product of its digits is 1344, while the sum is 25.

The square root of 7381222 is about 2716.8404443397. The cubic root of 7381222 is about 194.7045448956.

The spelling of 7381222 in words is "seven million, three hundred eighty-one thousand, two hundred twenty-two".