2153910 has 64 divisors (see below), whose sum is σ = 5785344. Its totient is φ = 508800.

The previous prime is 2153909. The next prime is 2153929. The reversal of 2153910 is 193512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20077 + ... + 20183.

It is an arithmetic number, because the mean of its divisors is an integer number (90396).

2^2153910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892672).

2153910 is an abundant number, since it is smaller than the sum of its proper divisors (3631434).

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

2153910 is a wasteful number, since it uses less digits than its factorization.

2153910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 2153910 is about 1467.6205231599. The cubic root of 2153910 is about 129.1444808699.

The spelling of 2153910 in words is "two million, one hundred fifty-three thousand, nine hundred ten".