1066728300 has 72 divisors (see below), whose sum is σ = 3366992832. Its totient is φ = 258600000.

The previous prime is 1066728287. The next prime is 1066728307. The reversal of 1066728300 is 38276601.

It is a super-2 number, since 2×1066728300² = 2275818532041780000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1066728307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158326 + ... + 164925.

Almost surely, 2^1066728300 is an apocalyptic number.

1066728300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066728300 is an abundant number, since it is smaller than the sum of its proper divisors (2300264532).

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

1066728300 is a wasteful number, since it uses less digits than its factorization.

1066728300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323279 (or 323272 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1066728300 is about 32660.8067873407. The cubic root of 1066728300 is about 1021.7655887310.

The spelling of 1066728300 in words is "one billion, sixty-six million, seven hundred twenty-eight thousand, three hundred".