890386422 has 32 divisors (see below), whose sum is σ = 1834376544. Its totient is φ = 287942400.

The previous prime is 890386421. The next prime is 890386429. The reversal of 890386422 is 224683098.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890386421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34528 + ... + 54524.

It is an arithmetic number, because the mean of its divisors is an integer number (57324267).

Almost surely, 2^890386422 is an apocalyptic number.

890386422 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

890386422 is an abundant number, since it is smaller than the sum of its proper divisors (943990122).

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

890386422 is a wasteful number, since it uses less digits than its factorization.

890386422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 890386422 is about 29839.3435249504. The cubic root of 890386422 is about 962.0393647186.

The spelling of 890386422 in words is "eight hundred ninety million, three hundred eighty-six thousand, four hundred twenty-two".