7218952 has 32 divisors (see below), whose sum is σ = 14941080. Its totient is φ = 3248640.

The previous prime is 7218947. The next prime is 7218973. The reversal of 7218952 is 2598127.

It can be written as a sum of positive squares in 4 ways, for example, as 2579236 + 4639716 = 1606^2 + 2154^2 .

It is a super-2 number, since 2×7218952² = 104226535956608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418 + ... + 5110.

Almost surely, 2^7218952 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 7218952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7470540).

7218952 is an abundant number, since it is smaller than the sum of its proper divisors (7722128).

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

7218952 is a wasteful number, since it uses less digits than its factorization.

7218952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1749 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 7218952 is about 2686.8107488247. The cubic root of 7218952 is about 193.2671539905.

The spelling of 7218952 in words is "seven million, two hundred eighteen thousand, nine hundred fifty-two".