164449190 has 8 divisors (see below), whose sum is σ = 296008560. Its totient is φ = 65779672.

The previous prime is 164449189. The next prime is 164449213. The reversal of 164449190 is 91944461.

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

It is a super-2 number, since 2×164449190² = 54087072183312200, which contains 22 as substring.

It is a congruent number.

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, 8222450 + ... + 8222469.

It is an arithmetic number, because the mean of its divisors is an integer number (37001070).

Almost surely, 2^164449190 is an apocalyptic number.

164449190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164449190 is a deficient number, since it is larger than the sum of its proper divisors (131559370).

164449190 is a wasteful number, since it uses less digits than its factorization.

164449190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16444926.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 164449190 is about 12823.7744053769. The cubic root of 164449190 is about 547.8696543843.

The spelling of 164449190 in words is "one hundred sixty-four million, four hundred forty-nine thousand, one hundred ninety".