2641920 has 104 divisors (see below), whose sum is σ = 8649696. Its totient is φ = 688128.

The previous prime is 2641909. The next prime is 2641921. The reversal of 2641920 is 291462.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61419 + ... + 61461.

2^2641920 is an apocalyptic number.

2641920 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 2641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4324848).

2641920 is an abundant number, since it is smaller than the sum of its proper divisors (6007776).

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

2641920 is an equidigital number, since it uses as much as digits as its factorization.

2641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2641920 is about 1625.3984126976. The cubic root of 2641920 is about 138.2419615634.

The spelling of 2641920 in words is "two million, six hundred forty-one thousand, nine hundred twenty".