2125920 has 96 divisors (see below), whose sum is σ = 6918912. Its totient is φ = 548352.

The previous prime is 2125919. The next prime is 2125927. The reversal of 2125920 is 295212.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20589 + ... + 20691.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2^2125920 is an apocalyptic number.

2125920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3459456).

2125920 is an abundant number, since it is smaller than the sum of its proper divisors (4792992).

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

2125920 is a wasteful number, since it uses less digits than its factorization.

2125920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2125920 is about 1458.0534969609. The cubic root of 2125920 is about 128.5826304173.

The spelling of 2125920 in words is "two million, one hundred twenty-five thousand, nine hundred twenty".