489402190 has 16 divisors (see below), whose sum is σ = 927288720. Its totient is φ = 185457600.

The previous prime is 489402187. The next prime is 489402197. The reversal of 489402190 is 91204984.

It is a happy number.

It is a super-2 number, since 2×489402190² = 479029007153592200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489402197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287711 + ... + 1288090.

It is an arithmetic number, because the mean of its divisors is an integer number (57955545).

Almost surely, 2^489402190 is an apocalyptic number.

489402190 is a deficient number, since it is larger than the sum of its proper divisors (437886530).

489402190 is a wasteful number, since it uses less digits than its factorization.

489402190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575827.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 489402190 is about 22122.4363486484. The cubic root of 489402190 is about 788.0527752452.

The spelling of 489402190 in words is "four hundred eighty-nine million, four hundred two thousand, one hundred ninety".