2772018 has 12 divisors (see below), whose sum is σ = 6006078. Its totient is φ = 924000.

The previous prime is 2772017. The next prime is 2772019. The reversal of 2772018 is 8102772.

It is an interprime number because it is at equal distance from previous prime (2772017) and next prime (2772019).

It can be written as a sum of positive squares in only one way, i.e., 1912689 + 859329 = 1383^2 + 927^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2771982 and 2772000.

It is not an unprimeable number, because it can be changed into a prime (2772017) 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, 76983 + ... + 77018.

2^2772018 is an apocalyptic number.

2772018 is an abundant number, since it is smaller than the sum of its proper divisors (3234060).

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

2772018 is a wasteful number, since it uses less digits than its factorization.

2772018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154009 (or 154006 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2772018 is about 1664.9378366774. The cubic root of 2772018 is about 140.4748839575.

The spelling of 2772018 in words is "two million, seven hundred seventy-two thousand, eighteen".