2238764528 has 240 divisors, whose sum is σ = 6245850240. Its totient is φ = 762048000.

The previous prime is 2238764519. The next prime is 2238764551. The reversal of 2238764528 is 8254678322.

It is a super-2 number, since 2×2238764528² = 10024133223662125568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2129603 + ... + 2130653.

It is an arithmetic number, because the mean of its divisors is an integer number (26024376).

Almost surely, 2^2238764528 is an apocalyptic number.

2238764528 is a gapful number since it is divisible by the number (28) 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 2238764528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3122925120).

2238764528 is an abundant number, since it is smaller than the sum of its proper divisors (4007085712).

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

2238764528 is a wasteful number, since it uses less digits than its factorization.

2238764528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1103 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The square root of 2238764528 is about 47315.5844093677. The cubic root of 2238764528 is about 1308.1859256195.

The spelling of 2238764528 in words is "two billion, two hundred thirty-eight million, seven hundred sixty-four thousand, five hundred twenty-eight".