164428874 has 8 divisors (see below), whose sum is σ = 246710880. Its totient is φ = 82191916.

The previous prime is 164428853. The next prime is 164428877. The reversal of 164428874 is 478824461.

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

It is a super-3 number, since 3×164428874³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164428877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197 + ... + 18135.

It is an arithmetic number, because the mean of its divisors is an integer number (30838860).

Almost surely, 2^164428874 is an apocalyptic number.

164428874 is a deficient number, since it is larger than the sum of its proper divisors (82282006).

164428874 is a wasteful number, since it uses less digits than its factorization.

164428874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524.

The product of its digits is 344064, while the sum is 44.

The square root of 164428874 is about 12822.9822584296. The cubic root of 164428874 is about 547.8470922416.

The spelling of 164428874 in words is "one hundred sixty-four million, four hundred twenty-eight thousand, eight hundred seventy-four".