2465820 has 144 divisors (see below), whose sum is σ = 9085440. Its totient is φ = 528768.

The previous prime is 2465819. The next prime is 2465831. The reversal of 2465820 is 285642.

2465820 is a `hidden beast` number, since 2 + 4 + 658 + 2 + 0 = 666.

2465820 is nontrivially palindromic in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23889 + ... + 23991.

2^2465820 is an apocalyptic number.

2465820 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 2465820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4542720).

2465820 is an abundant number, since it is smaller than the sum of its proper divisors (6619620).

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

2465820 is a wasteful number, since it uses less digits than its factorization.

2465820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2465820 is about 1570.2929662964. The cubic root of 2465820 is about 135.0995151019.

The spelling of 2465820 in words is "two million, four hundred sixty-five thousand, eight hundred twenty".