1066235928 has 64 divisors (see below), whose sum is σ = 2718092160. Its totient is φ = 348477696.

The previous prime is 1066235899. The next prime is 1066235959. The reversal of 1066235928 is 8295326601.

It is a super-2 number, since 2×1066235928² = 2273718108316042368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066235928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270951 + ... + 274857.

It is an arithmetic number, because the mean of its divisors is an integer number (42470190).

Almost surely, 2^1066235928 is an apocalyptic number.

It is an amenable number.

1066235928 is an abundant number, since it is smaller than the sum of its proper divisors (1651856232).

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

1066235928 is a wasteful number, since it uses less digits than its factorization.

1066235928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136 (or 4132 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1066235928 is about 32653.2682590886. The cubic root of 1066235928 is about 1021.6083583815.

The spelling of 1066235928 in words is "one billion, sixty-six million, two hundred thirty-five thousand, nine hundred twenty-eight".