2244689664 has 144 divisors (see below), whose sum is σ = 7048366080. Its totient is φ = 620605440.

The previous prime is 2244689663. The next prime is 2244689687. The reversal of 2244689664 is 4669864422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244689663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159922 + ... + 173390.

Almost surely, 2^2244689664 is an apocalyptic number.

2244689664 is a gapful number since it is divisible by the number (24) 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 2244689664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3524183040).

2244689664 is an abundant number, since it is smaller than the sum of its proper divisors (4803676416).

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

2244689664 is a wasteful number, since it uses less digits than its factorization.

2244689664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526 (or 13512 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The square root of 2244689664 is about 47378.1559793118. The cubic root of 2244689664 is about 1309.3389948454.

The spelling of 2244689664 in words is "two billion, two hundred forty-four million, six hundred eighty-nine thousand, six hundred sixty-four".