2651018 has 4 divisors (see below), whose sum is σ = 3976530. Its totient is φ = 1325508.

The previous prime is 2651017. The next prime is 2651039. The reversal of 2651018 is 8101562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2053489 + 597529 = 1433^2 + 773^2 .

It is a super-3 number, since 3×2651018³ = 55893239864492333496, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2650984 and 2651002.

It is not an unprimeable number, because it can be changed into a prime (2651017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662753 + ... + 662756.

2^2651018 is an apocalyptic number.

2651018 is a deficient number, since it is larger than the sum of its proper divisors (1325512).

2651018 is a wasteful number, since it uses less digits than its factorization.

2651018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325511.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2651018 is about 1628.1947058015. The cubic root of 2651018 is about 138.4004680506.

The spelling of 2651018 in words is "two million, six hundred fifty-one thousand, eighteen".