1890225466 has 8 divisors (see below), whose sum is σ = 2835588564. Its totient is φ = 945029280.

The previous prime is 1890225451. The next prime is 1890225479. The reversal of 1890225466 is 6645220981.

It can be written as a sum of positive squares in 2 ways, for example, as 1804125625 + 86099841 = 42475^2 + 9279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945 + ... + 61996.

Almost surely, 2^1890225466 is an apocalyptic number.

1890225466 is a deficient number, since it is larger than the sum of its proper divisors (945363098).

1890225466 is a wasteful number, since it uses less digits than its factorization.

1890225466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83456.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 1890225466 is about 43476.7232665940. The cubic root of 1890225466 is about 1236.4347525227.

The spelling of 1890225466 in words is "one billion, eight hundred ninety million, two hundred twenty-five thousand, four hundred sixty-six".