7221590 has 8 divisors (see below), whose sum is σ = 12998880. Its totient is φ = 2888632.

The previous prime is 7221589. The next prime is 7221611. The reversal of 7221590 is 951227.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361070 + ... + 361089.

It is an arithmetic number, because the mean of its divisors is an integer number (1624860).

Almost surely, 2^7221590 is an apocalyptic number.

7221590 is a deficient number, since it is larger than the sum of its proper divisors (5777290).

7221590 is a wasteful number, since it uses less digits than its factorization.

7221590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722166.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7221590 is about 2687.3016205852. The cubic root of 7221590 is about 193.2906928025.

The spelling of 7221590 in words is "seven million, two hundred twenty-one thousand, five hundred ninety".