2138437 has 8 divisors (see below), whose sum is σ = 2503872. Its totient is φ = 1788000.

The previous prime is 2138429. The next prime is 2138467. The reversal of 2138437 is 7348312.

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

It is a cyclic number.

It is not a de Polignac number, because 2138437 - 2³ = 2138429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138407) by changing a digit.

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, 3439 + ... + 4012.

It is an arithmetic number, because the mean of its divisors is an integer number (312984).

2^2138437 is an apocalyptic number.

It is an amenable number.

2138437 is a deficient number, since it is larger than the sum of its proper divisors (365435).

2138437 is an equidigital number, since it uses as much as digits as its factorization.

2138437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499.

The product of its digits is 4032, while the sum is 28.

The square root of 2138437 is about 1462.3395638497. The cubic root of 2138437 is about 128.8344931922.

The spelling of 2138437 in words is "two million, one hundred thirty-eight thousand, four hundred thirty-seven".