2262388644 has 60 divisors (see below), whose sum is σ = 5931669744. Its totient is φ = 751918896.

The previous prime is 2262388637. The next prime is 2262388657. The reversal of 2262388644 is 4468832622.

2262388644 is a `hidden beast` number, since 2 + 262 + 388 + 6 + 4 + 4 = 666.

2262388644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2262388644.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102367 + ... + 122489.

Almost surely, 2^2262388644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2262388644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2965834872).

2262388644 is an abundant number, since it is smaller than the sum of its proper divisors (3669281100).

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

2262388644 is a wasteful number, since it uses less digits than its factorization.

2262388644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20475 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The square root of 2262388644 is about 47564.5734134135. The cubic root of 2262388644 is about 1312.7712915125.

The spelling of 2262388644 in words is "two billion, two hundred sixty-two million, three hundred eighty-eight thousand, six hundred forty-four".