7222040 has 32 divisors (see below), whose sum is σ = 18571680. Its totient is φ = 2476032.

The previous prime is 7222037. The next prime is 7222043. The reversal of 7222040 is 402227.

It is an interprime number because it is at equal distance from previous prime (7222037) and next prime (7222043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12617 + ... + 13176.

It is an arithmetic number, because the mean of its divisors is an integer number (580365).

Almost surely, 2^7222040 is an apocalyptic number.

7222040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7222040 is an abundant number, since it is smaller than the sum of its proper divisors (11349640).

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

7222040 is a wasteful number, since it uses less digits than its factorization.

7222040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25811 (or 25807 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 7222040 is about 2687.3853463915. The cubic root of 7222040 is about 193.2947075696.

Adding to 7222040 its reverse (402227), we get a palindrome (7624267).

The spelling of 7222040 in words is "seven million, two hundred twenty-two thousand, forty".