2666426 has 16 divisors (see below), whose sum is σ = 4593984. Its totient is φ = 1137024.

The previous prime is 2666423. The next prime is 2666429. The reversal of 2666426 is 6246662.

It is an interprime number because it is at equal distance from previous prime (2666423) and next prime (2666429).

It is a super-2 number, since 2×2666426² = 14219655226952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2666392 and 2666401.

It is not an unprimeable number, because it can be changed into a prime (2666423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3626 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (287124).

2^2666426 is an apocalyptic number.

2666426 is a deficient number, since it is larger than the sum of its proper divisors (1927558).

2666426 is a wasteful number, since it uses less digits than its factorization.

2666426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its digits is 20736, while the sum is 32.

The square root of 2666426 is about 1632.9194713763. The cubic root of 2666426 is about 138.6680830210.

The spelling of 2666426 in words is "two million, six hundred sixty-six thousand, four hundred twenty-six".