7240422 has 64 divisors (see below), whose sum is σ = 17547264. Its totient is φ = 1948320.

The previous prime is 7240411. The next prime is 7240439. The reversal of 7240422 is 2240427.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87193 + ... + 87275.

It is an arithmetic number, because the mean of its divisors is an integer number (274176).

Almost surely, 2^7240422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7240422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8773632).

7240422 is an abundant number, since it is smaller than the sum of its proper divisors (10306842).

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

7240422 is a wasteful number, since it uses less digits than its factorization.

7240422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 7240422 is about 2690.8032258045. The cubic root of 7240422 is about 193.4585639964.

Adding to 7240422 its reverse (2240427), we get a palindrome (9480849).

The spelling of 7240422 in words is "seven million, two hundred forty thousand, four hundred twenty-two".