1088209920 has 352 divisors, whose sum is σ = 4126752000. Its totient is φ = 239468544.

The previous prime is 1088209907. The next prime is 1088209921. The reversal of 1088209920 is 299028801.

It is not an unprimeable number, because it can be changed into a prime (1088209921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3117906 + ... + 3118254.

Almost surely, 2^1088209920 is an apocalyptic number.

1088209920 is a gapful number since it is divisible by the number (10) 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 1088209920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063376000).

1088209920 is an abundant number, since it is smaller than the sum of its proper divisors (3038542080).

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

1088209920 is a wasteful number, since it uses less digits than its factorization.

1088209920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1088209920 is about 32988.0269188686. The cubic root of 1088209920 is about 1028.5787794889.

The spelling of 1088209920 in words is "one billion, eighty-eight million, two hundred nine thousand, nine hundred twenty".