2222749152 has 144 divisors (see below), whose sum is σ = 6835570560. Its totient is φ = 681071616.

The previous prime is 2222749121. The next prime is 2222749157. The reversal of 2222749152 is 2519472222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×2222749152² = 9881227585433438208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222749157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006033 + ... + 1008239.

It is an arithmetic number, because the mean of its divisors is an integer number (47469240).

Almost surely, 2^2222749152 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 2222749152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3417785280).

2222749152 is an abundant number, since it is smaller than the sum of its proper divisors (4612821408).

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

2222749152 is a wasteful number, since it uses less digits than its factorization.

2222749152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2494 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2222749152 is about 47146.0406821188. The cubic root of 2222749152 is about 1305.0590152551.

The spelling of 2222749152 in words is "two billion, two hundred twenty-two million, seven hundred forty-nine thousand, one hundred fifty-two".