2138370 has 32 divisors (see below), whose sum is σ = 5527872. Its totient is φ = 526272.

The previous prime is 2138363. The next prime is 2138371. The reversal of 2138370 is 738312.

It is a super-3 number, since 3×2138370³ = 29333900426901759000, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2138370.

It is not an unprimeable number, because it can be changed into a prime (2138371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2352 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (172746).

2^2138370 is an apocalyptic number.

2138370 is an abundant number, since it is smaller than the sum of its proper divisors (3389502).

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

2138370 is a wasteful number, since it uses less digits than its factorization.

2138370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2138370 is about 1462.3166551742. The cubic root of 2138370 is about 128.8331476610.

The spelling of 2138370 in words is "two million, one hundred thirty-eight thousand, three hundred seventy".