7222590 has 24 divisors (see below), whose sum is σ = 18778968. Its totient is φ = 1926000.

The previous prime is 7222573. The next prime is 7222591. The reversal of 7222590 is 952227.

It is a happy number.

7222590 is a `hidden beast` number, since 72 + 2 + 2 + 590 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222591) 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, 40036 + ... + 40215.

It is an arithmetic number, because the mean of its divisors is an integer number (782457).

Almost surely, 2^7222590 is an apocalyptic number.

7222590 is an abundant number, since it is smaller than the sum of its proper divisors (11556378).

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

7222590 is a wasteful number, since it uses less digits than its factorization.

7222590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80264 (or 80261 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 7222590 is about 2687.4876743903. The cubic root of 7222590 is about 193.2996142806.

The spelling of 7222590 in words is "seven million, two hundred twenty-two thousand, five hundred ninety".