890512194 has 32 divisors (see below), whose sum is σ = 2092394304. Its totient is φ = 249094080.

The previous prime is 890512163. The next prime is 890512211. The reversal of 890512194 is 491215098.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 in 15 ways as a sum of consecutive naturals, for example, 518089 + ... + 519804.

It is an arithmetic number, because the mean of its divisors is an integer number (65387322).

Almost surely, 2^890512194 is an apocalyptic number.

890512194 is an abundant number, since it is smaller than the sum of its proper divisors (1201882110).

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

890512194 is a wasteful number, since it uses less digits than its factorization.

890512194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037922.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 890512194 is about 29841.4509365748. The cubic root of 890512194 is about 962.0846603772.

The spelling of 890512194 in words is "eight hundred ninety million, five hundred twelve thousand, one hundred ninety-four".