164012444 has 12 divisors (see below), whose sum is σ = 296280768. Its totient is φ = 79360800.

The previous prime is 164012437. The next prime is 164012467. The reversal of 164012444 is 444210461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661217 + ... + 661464.

It is an arithmetic number, because the mean of its divisors is an integer number (24690064).

Almost surely, 2^164012444 is an apocalyptic number.

It is an amenable number.

164012444 is a deficient number, since it is larger than the sum of its proper divisors (132268324).

164012444 is a wasteful number, since it uses less digits than its factorization.

164012444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322716 (or 1322714 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 164012444 is about 12806.7343222228. The cubic root of 164012444 is about 547.3842115948.

The spelling of 164012444 in words is "one hundred sixty-four million, twelve thousand, four hundred forty-four".