2138708 has 24 divisors (see below), whose sum is σ = 4398240. Its totient is φ = 897120.

The previous prime is 2138693. The next prime is 2138713. The reversal of 2138708 is 8078312.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298 + ... + 2441.

It is an arithmetic number, because the mean of its divisors is an integer number (183260).

2^2138708 is an apocalyptic number.

It is an amenable number.

2138708 is an abundant number, since it is smaller than the sum of its proper divisors (2259532).

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

2138708 is a wasteful number, since it uses less digits than its factorization.

2138708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767 (or 3765 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2138708 is about 1462.4322206516. The cubic root of 2138708 is about 128.8399352780.

The spelling of 2138708 in words is "two million, one hundred thirty-eight thousand, seven hundred eight".