7198340 has 36 divisors (see below), whose sum is σ = 15969996. Its totient is φ = 2725056.

The previous prime is 7198297. The next prime is 7198343. The reversal of 7198340 is 438917.

It can be written as a sum of positive squares in 2 ways, for example, as 4528384 + 2669956 = 2128^2 + 1634^2 .

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 7198297 and 7198306.

It is not an unprimeable number, because it can be changed into a prime (7198343) 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, 6722 + ... + 7718.

It is an arithmetic number, because the mean of its divisors is an integer number (443611).

Almost surely, 2^7198340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7198340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7984998).

7198340 is an abundant number, since it is smaller than the sum of its proper divisors (8771656).

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

7198340 is a wasteful number, since it uses less digits than its factorization.

7198340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 7198340 is about 2682.9722324318. The cubic root of 7198340 is about 193.0830358511.

The spelling of 7198340 in words is "seven million, one hundred ninety-eight thousand, three hundred forty".