2766406 has 4 divisors (see below), whose sum is σ = 4149612. Its totient is φ = 1383202.

The previous prime is 2766389. The next prime is 2766431. The reversal of 2766406 is 6046672.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691600 + ... + 691603.

It is an arithmetic number, because the mean of its divisors is an integer number (1037403).

2^2766406 is an apocalyptic number.

2766406 is a deficient number, since it is larger than the sum of its proper divisors (1383206).

2766406 is a wasteful number, since it uses less digits than its factorization.

2766406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383205.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 2766406 is about 1663.2516346001. The cubic root of 2766406 is about 140.3800219407.

The spelling of 2766406 in words is "two million, seven hundred sixty-six thousand, four hundred six".