7022290 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 2553520.

The previous prime is 7022273. The next prime is 7022293. The reversal of 7022290 is 922207.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7022293) 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, 31810 + ... + 32029.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^7022290 is an apocalyptic number.

7022290 is a deficient number, since it is larger than the sum of its proper divisors (6767150).

7022290 is a wasteful number, since it uses less digits than its factorization.

7022290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63857.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7022290 is about 2649.9603770623. The cubic root of 7022290 is about 191.4959471223.

Adding to 7022290 its reverse (922207), we get a palindrome (7944497).

It can be divided in two parts, 702 and 2290, that added together give a palindrome (2992).

The spelling of 7022290 in words is "seven million, twenty-two thousand, two hundred ninety".