2138494 has 8 divisors (see below), whose sum is σ = 3347280. Its totient is φ = 1022736.

The previous prime is 2138491. The next prime is 2138501. The reversal of 2138494 is 4948312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23199 + ... + 23290.

It is an arithmetic number, because the mean of its divisors is an integer number (418410).

2^2138494 is an apocalyptic number.

2138494 is a deficient number, since it is larger than the sum of its proper divisors (1208786).

2138494 is a wasteful number, since it uses less digits than its factorization.

2138494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46514.

The product of its digits is 6912, while the sum is 31.

The square root of 2138494 is about 1462.3590530372. The cubic root of 2138494 is about 128.8356378757.

The spelling of 2138494 in words is "two million, one hundred thirty-eight thousand, four hundred ninety-four".