1035199800 has 144 divisors (see below), whose sum is σ = 3659643000. Its totient is φ = 261515520.

The previous prime is 1035199799. The next prime is 1035199807. The reversal of 1035199800 is 89915301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035199807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19066 + ... + 49334.

Almost surely, 2^1035199800 is an apocalyptic number.

1035199800 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 1035199800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829821500).

1035199800 is an abundant number, since it is smaller than the sum of its proper divisors (2624443200).

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

1035199800 is a wasteful number, since it uses less digits than its factorization.

1035199800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30310 (or 30298 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 1035199800 is about 32174.5209754551. The cubic root of 1035199800 is about 1011.5982277202.

The spelling of 1035199800 in words is "one billion, thirty-five million, one hundred ninety-nine thousand, eight hundred".