8722340 has 48 divisors (see below), whose sum is σ = 20490624. Its totient is φ = 3091200.

The previous prime is 8722339. The next prime is 8722361. The reversal of 8722340 is 432278.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8537 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (426888).

Almost surely, 2^8722340 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 8722340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10245312).

8722340 is an abundant number, since it is smaller than the sum of its proper divisors (11768284).

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

8722340 is a wasteful number, since it uses less digits than its factorization.

8722340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 8722340 is about 2953.3607974645. The cubic root of 8722340 is about 205.8469029320.

The spelling of 8722340 in words is "eight million, seven hundred twenty-two thousand, three hundred forty".