2405620 has 24 divisors (see below), whose sum is σ = 5773824. Its totient is φ = 824736.

The previous prime is 2405591. The next prime is 2405621. The reversal of 2405620 is 265042.

2405620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8452 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (240576).

2^2405620 is an apocalyptic number.

2405620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2405620 is an abundant number, since it is smaller than the sum of its proper divisors (3368204).

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

2405620 is a wasteful number, since it uses less digits than its factorization.

2405620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199 (or 17197 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2405620 is about 1551.0061250685. The cubic root of 2405620 is about 133.9910144714.

Subtracting from 2405620 its sum of digits (19), we obtain a square (2405601 = 1551²).

It can be divided in two parts, 2405 and 620, that added together give a square (3025 = 55²).

The spelling of 2405620 in words is "two million, four hundred five thousand, six hundred twenty".