2138766 has 16 divisors (see below), whose sum is σ = 4888704. Its totient is φ = 611064.

The previous prime is 2138749. The next prime is 2138789. The reversal of 2138766 is 6678312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25420 + ... + 25503.

It is an arithmetic number, because the mean of its divisors is an integer number (305544).

2^2138766 is an apocalyptic number.

2138766 is an abundant number, since it is smaller than the sum of its proper divisors (2749938).

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

2138766 is a wasteful number, since it uses less digits than its factorization.

2138766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50935.

The product of its digits is 12096, while the sum is 33.

The square root of 2138766 is about 1462.4520504960. The cubic root of 2138766 is about 128.8410999451.

The spelling of 2138766 in words is "two million, one hundred thirty-eight thousand, seven hundred sixty-six".