2090138 has 8 divisors (see below), whose sum is σ = 3164832. Its totient is φ = 1035196.

The previous prime is 2090131. The next prime is 2090147. The reversal of 2090138 is 8310902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2090131) 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 3 ways as a sum of consecutive naturals, for example, 4670 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (395604).

2^2090138 is an apocalyptic number.

2090138 is a deficient number, since it is larger than the sum of its proper divisors (1074694).

2090138 is a wasteful number, since it uses less digits than its factorization.

2090138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2090138 is about 1445.7309569903. The cubic root of 2090138 is about 127.8571404198.

It can be divided in two parts, 2090 and 138, that multiplied together give a triangular number (288420 = T₇₅₉).

The spelling of 2090138 in words is "two million, ninety thousand, one hundred thirty-eight".