1052230666 has 4 divisors (see below), whose sum is σ = 1578346002. Its totient is φ = 526115332.

The previous prime is 1052230637. The next prime is 1052230667. The reversal of 1052230666 is 6660322501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 701455225 + 350775441 = 26485^2 + 18729^2 .

It is a super-2 number, since 2×1052230666² = 2214378748941607112, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1052230667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263057665 + ... + 263057668.

Almost surely, 2^1052230666 is an apocalyptic number.

1052230666 is a deficient number, since it is larger than the sum of its proper divisors (526115336).

1052230666 is an equidigital number, since it uses as much as digits as its factorization.

1052230666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526115335.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1052230666 is about 32438.1051542780. The cubic root of 1052230666 is about 1017.1156067025.

The spelling of 1052230666 in words is "one billion, fifty-two million, two hundred thirty thousand, six hundred sixty-six".