2372820 has 48 divisors (see below), whose sum is σ = 6749568. Its totient is φ = 622720.

The previous prime is 2372819. The next prime is 2372837. The reversal of 2372820 is 282732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3982 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

2^2372820 is an apocalyptic number.

2372820 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 2372820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3374784).

2372820 is an abundant number, since it is smaller than the sum of its proper divisors (4376748).

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

2372820 is a wasteful number, since it uses less digits than its factorization.

2372820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2372820 is about 1540.3960529682. The cubic root of 2372820 is about 133.3792480758.

The spelling of 2372820 in words is "two million, three hundred seventy-two thousand, eight hundred twenty".