2366640220 has 72 divisors (see below), whose sum is σ = 5795586720. Its totient is φ = 809424000.

The previous prime is 2366640187. The next prime is 2366640233. The reversal of 2366640220 is 220466632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427470 + ... + 432970.

It is an arithmetic number, because the mean of its divisors is an integer number (80494260).

Almost surely, 2^2366640220 is an apocalyptic number.

2366640220 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 2366640220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897793360).

2366640220 is an abundant number, since it is smaller than the sum of its proper divisors (3428946500).

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

2366640220 is a wasteful number, since it uses less digits than its factorization.

2366640220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963 (or 5954 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 2366640220 is about 48648.1265826342. The cubic root of 2366640220 is about 1332.6335629442.

The spelling of 2366640220 in words is "two billion, three hundred sixty-six million, six hundred forty thousand, two hundred twenty".