1868022288 has 120 divisors (see below), whose sum is σ = 6038693856. Its totient is φ = 532761600.

The previous prime is 1868022281. The next prime is 1868022301. The reversal of 1868022288 is 8822208681.

It is a super-3 number, since 3×1868022288³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1868022281) 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, 7758 + ... + 61613.

Almost surely, 2^1868022288 is an apocalyptic number.

1868022288 is a gapful number since it is divisible by the number (18) 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 1868022288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3019346928).

1868022288 is an abundant number, since it is smaller than the sum of its proper divisors (4170671568).

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

1868022288 is a wasteful number, since it uses less digits than its factorization.

1868022288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69413 (or 69404 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 1868022288 is about 43220.6234105895. The cubic root of 1868022288 is about 1231.5744897263.

The spelling of 1868022288 in words is "one billion, eight hundred sixty-eight million, twenty-two thousand, two hundred eighty-eight".