1066235898 has 32 divisors (see below), whose sum is σ = 2624582016. Its totient is φ = 281204928.

The previous prime is 1066235893. The next prime is 1066235899. The reversal of 1066235898 is 8985326601.

It is a happy number.

It is a super-2 number, since 2×1066235898² = 2273717980367732808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066235893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975861 + ... + 976952.

It is an arithmetic number, because the mean of its divisors is an integer number (82018188).

Almost surely, 2^1066235898 is an apocalyptic number.

1066235898 is an abundant number, since it is smaller than the sum of its proper divisors (1558346118).

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

1066235898 is a wasteful number, since it uses less digits than its factorization.

1066235898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952838.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 1066235898 is about 32653.2677997165. The cubic root of 1066235898 is about 1021.6083488001.

The spelling of 1066235898 in words is "one billion, sixty-six million, two hundred thirty-five thousand, eight hundred ninety-eight".