2225786780 has 72 divisors (see below), whose sum is σ = 5444971056. Its totient is φ = 762048000.

The previous prime is 2225786767. The next prime is 2225786807. The reversal of 2225786780 is 876875222.

2225786780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1028900 + ... + 1031060.

It is an arithmetic number, because the mean of its divisors is an integer number (75624598).

Almost surely, 2^2225786780 is an apocalyptic number.

2225786780 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 2225786780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2722485528).

2225786780 is an abundant number, since it is smaller than the sum of its proper divisors (3219184276).

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

2225786780 is a wasteful number, since it uses less digits than its factorization.

2225786780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 2225786780 is about 47178.2447744721. The cubic root of 2225786780 is about 1305.6532462473.

The spelling of 2225786780 in words is "two billion, two hundred twenty-five million, seven hundred eighty-six thousand, seven hundred eighty".