2220782620 has 48 divisors (see below), whose sum is σ = 5337033408. Its totient is φ = 760389120.

The previous prime is 2220782593. The next prime is 2220782633. The reversal of 2220782620 is 262870222.

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, 97960 + ... + 118480.

It is an arithmetic number, because the mean of its divisors is an integer number (111188196).

Almost surely, 2^2220782620 is an apocalyptic number.

2220782620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220782620 is an abundant number, since it is smaller than the sum of its proper divisors (3116250788).

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

2220782620 is a wasteful number, since it uses less digits than its factorization.

2220782620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21310 (or 21308 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2220782620 is about 47125.1803179574. The cubic root of 2220782620 is about 1304.6740269095.

The spelling of 2220782620 in words is "two billion, two hundred twenty million, seven hundred eighty-two thousand, six hundred twenty".