164793642 has 32 divisors (see below), whose sum is σ = 361646208. Its totient is φ = 49747776.

The previous prime is 164793641. The next prime is 164793661. The reversal of 164793642 is 246397461.

It is a junction number, because it is equal to n+sod(n) for n = 164793594 and 164793603.

It is not an unprimeable number, because it can be changed into a prime (164793641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15798 + ... + 24065.

It is an arithmetic number, because the mean of its divisors is an integer number (11301444).

Almost surely, 2^164793642 is an apocalyptic number.

164793642 is an abundant number, since it is smaller than the sum of its proper divisors (196852566).

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

164793642 is a wasteful number, since it uses less digits than its factorization.

164793642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39934.

The product of its digits is 217728, while the sum is 42.

The square root of 164793642 is about 12837.1975913748. The cubic root of 164793642 is about 548.2519065800.

The spelling of 164793642 in words is "one hundred sixty-four million, seven hundred ninety-three thousand, six hundred forty-two".