1045800000 has 504 divisors, whose sum is σ = 4333597632. Its totient is φ = 236160000.

The previous prime is 1045799983. The next prime is 1045800023. The reversal of 1045800000 is 85401.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12599959 + ... + 12600041.

It is an arithmetic number, because the mean of its divisors is an integer number (8598408).

Almost surely, 2^1045800000 is an apocalyptic number.

1045800000 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 1045800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166798816).

1045800000 is an abundant number, since it is smaller than the sum of its proper divisors (3287797632).

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

1045800000 is an frugal number, since it uses more digits than its factorization.

1045800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1045800000 is about 32338.8311477085. The cubic root of 1045800000 is about 1015.0393507194.

Adding to 1045800000 its reverse (85401), we get a palindrome (1045885401).

The spelling of 1045800000 in words is "one billion, forty-five million, eight hundred thousand".