2628918 has 12 divisors (see below), whose sum is σ = 5696028. Its totient is φ = 876300.

The previous prime is 2628911. The next prime is 2628919. The reversal of 2628918 is 8198262.

It is a super-2 number, since 2×2628918² = 13822419701448, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73008 + ... + 73043.

It is an arithmetic number, because the mean of its divisors is an integer number (474669).

2^2628918 is an apocalyptic number.

2628918 is an abundant number, since it is smaller than the sum of its proper divisors (3067110).

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

2628918 is a wasteful number, since it uses less digits than its factorization.

2628918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146059 (or 146056 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2628918 is about 1621.3938448138. The cubic root of 2628918 is about 138.0148062248.

It can be divided in two parts, 262 and 8918, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 2628918 in words is "two million, six hundred twenty-eight thousand, nine hundred eighteen".