2149766 has 4 divisors (see below), whose sum is σ = 3224652. Its totient is φ = 1074882.

The previous prime is 2149727. The next prime is 2149781. The reversal of 2149766 is 6679412.

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, 537440 + ... + 537443.

It is an arithmetic number, because the mean of its divisors is an integer number (806163).

2^2149766 is an apocalyptic number.

2149766 is a deficient number, since it is larger than the sum of its proper divisors (1074886).

2149766 is a wasteful number, since it uses less digits than its factorization.

2149766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074885.

The product of its digits is 18144, while the sum is 35.

The square root of 2149766 is about 1466.2080343526. The cubic root of 2149766 is about 129.0616054927.

The spelling of 2149766 in words is "two million, one hundred forty-nine thousand, seven hundred sixty-six".