2421825 has 36 divisors (see below), whose sum is σ = 4664880. Its totient is φ = 1105440.

The previous prime is 2421823. The next prime is 2421841. The reversal of 2421825 is 5281242.

It is not a de Polignac number, because 2421825 - 2¹ = 2421823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2421795 and 2421804.

It is not an unprimeable number, because it can be changed into a prime (2421821) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3346 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (129580).

2^2421825 is an apocalyptic number.

2421825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421825 is a deficient number, since it is larger than the sum of its proper divisors (2243055).

2421825 is a wasteful number, since it uses less digits than its factorization.

2421825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 674 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 2421825 is about 1556.2213852791. The cubic root of 2421825 is about 134.2912097063.

The spelling of 2421825 in words is "two million, four hundred twenty-one thousand, eight hundred twenty-five".