2139372 has 72 divisors (see below), whose sum is σ = 5870592. Its totient is φ = 680400.

The previous prime is 2139367. The next prime is 2139373. The reversal of 2139372 is 2739312.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2139373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30097 + ... + 30167.

It is an arithmetic number, because the mean of its divisors is an integer number (81536).

2^2139372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2935296).

2139372 is an abundant number, since it is smaller than the sum of its proper divisors (3731220).

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

2139372 is a wasteful number, since it uses less digits than its factorization.

2139372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 107 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 2139372 is about 1462.6592221020. The cubic root of 2139372 is about 128.8532674494.

It can be divided in two parts, 21 and 39372, that added together give a palindrome (39393).

The spelling of 2139372 in words is "two million, one hundred thirty-nine thousand, three hundred seventy-two".