1012089600 has 216 divisors, whose sum is σ = 3711863120. Its totient is φ = 269844480.

The previous prime is 1012089583. The next prime is 1012089607. The reversal of 1012089600 is 69802101.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1012089607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169872 + ... + 175728.

Almost surely, 2^1012089600 is an apocalyptic number.

1012089600 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 1012089600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855931560).

1012089600 is an abundant number, since it is smaller than the sum of its proper divisors (2699773520).

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

1012089600 is an equidigital number, since it uses as much as digits as its factorization.

1012089600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892 (or 5867 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1012089600 is about 31813.3556859379. The cubic root of 1012089600 is about 1004.0137350438.

The spelling of 1012089600 in words is "one billion, twelve million, eighty-nine thousand, six hundred".