890430466 has 4 divisors (see below), whose sum is σ = 1335645702. Its totient is φ = 445215232.

The previous prime is 890430433. The next prime is 890430479. The reversal of 890430466 is 664034098.

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., 794958025 + 95472441 = 28195^2 + 9771^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222607615 + ... + 222607618.

Almost surely, 2^890430466 is an apocalyptic number.

890430466 is a deficient number, since it is larger than the sum of its proper divisors (445215236).

890430466 is a wasteful number, since it uses less digits than its factorization.

890430466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445215235.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 890430466 is about 29840.0815347412. The cubic root of 890430466 is about 962.0552272557.

The spelling of 890430466 in words is "eight hundred ninety million, four hundred thirty thousand, four hundred sixty-six".