2918238 has 16 divisors (see below), whose sum is σ = 5972736. Its totient is φ = 950040.

The previous prime is 2918231. The next prime is 2918239. The reversal of 2918238 is 8328192.

It is a super-2 number, since 2×2918238² = 17032226049288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2918199 and 2918208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2918231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5398 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (373296).

2^2918238 is an apocalyptic number.

2918238 is an abundant number, since it is smaller than the sum of its proper divisors (3054498).

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

2918238 is a wasteful number, since it uses less digits than its factorization.

2918238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11359.

The product of its digits is 6912, while the sum is 33.

The square root of 2918238 is about 1708.2851050103. The cubic root of 2918238 is about 142.9026347500.

The spelling of 2918238 in words is "two million, nine hundred eighteen thousand, two hundred thirty-eight".