1100428700 has 288 divisors, whose sum is σ = 3159797760. Its totient is φ = 323481600.

The previous prime is 1100428687. The next prime is 1100428723. The reversal of 1100428700 is 78240011.

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, 7009022 + ... + 7009178.

It is an arithmetic number, because the mean of its divisors is an integer number (10971520).

Almost surely, 2^1100428700 is an apocalyptic number.

1100428700 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 1100428700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579898880).

1100428700 is an abundant number, since it is smaller than the sum of its proper divisors (2059369060).

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

1100428700 is a wasteful number, since it uses less digits than its factorization.

1100428700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1100428700 is about 33172.7101696560. The cubic root of 1100428700 is about 1032.4142006104.

Adding to 1100428700 its reverse (78240011), we get a palindrome (1178668711).

The spelling of 1100428700 in words is "one billion, one hundred million, four hundred twenty-eight thousand, seven hundred".