2091366 has 16 divisors (see below), whose sum is σ = 4647600. Its totient is φ = 697104.

The previous prime is 2091361. The next prime is 2091379. The reversal of 2091366 is 6631902.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19311 + ... + 19418.

It is an arithmetic number, because the mean of its divisors is an integer number (290475).

2^2091366 is an apocalyptic number.

2091366 is an abundant number, since it is smaller than the sum of its proper divisors (2556234).

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

2091366 is a wasteful number, since it uses less digits than its factorization.

2091366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38740 (or 38734 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2091366 is about 1446.1555932886. The cubic root of 2091366 is about 127.8821751033.

The spelling of 2091366 in words is "two million, ninety-one thousand, three hundred sixty-six".