1081423200 has 576 divisors, whose sum is σ = 4346721792. Its totient is φ = 229785600.

The previous prime is 1081423163. The next prime is 1081423229. The reversal of 1081423200 is 23241801.

It is a super-2 number, since 2×1081423200² = 2338952274996480000, 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 95 ways as a sum of consecutive naturals, for example, 7893532 + ... + 7893668.

It is an arithmetic number, because the mean of its divisors is an integer number (7546392).

Almost surely, 2^1081423200 is an apocalyptic number.

1081423200 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 1081423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2173360896).

1081423200 is an abundant number, since it is smaller than the sum of its proper divisors (3265298592).

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

1081423200 is a wasteful number, since it uses less digits than its factorization.

1081423200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1081423200 is about 32884.9996198875. Note that the first 3 decimals coincide. The cubic root of 1081423200 is about 1026.4360438489.

The spelling of 1081423200 in words is "one billion, eighty-one million, four hundred twenty-three thousand, two hundred".