2138572 has 12 divisors (see below), whose sum is σ = 3759840. Its totient is φ = 1064336.

The previous prime is 2138569. The next prime is 2138593. The reversal of 2138572 is 2758312.

It is a self number, because there is not a number n which added to its sum of digits gives 2138572.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163 + ... + 2074.

It is an arithmetic number, because the mean of its divisors is an integer number (313320).

2^2138572 is an apocalyptic number.

It is an amenable number.

2138572 is a deficient number, since it is larger than the sum of its proper divisors (1621268).

2138572 is a wasteful number, since it uses less digits than its factorization.

2138572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 2478 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 2138572 is about 1462.3857220310. The cubic root of 2138572 is about 128.8372042518.

The spelling of 2138572 in words is "two million, one hundred thirty-eight thousand, five hundred seventy-two".