164936442 has 32 divisors (see below), whose sum is σ = 367524864. Its totient is φ = 48916400.

The previous prime is 164936423. The next prime is 164936501. The reversal of 164936442 is 244639461.

It is a self number, because there is not a number n which added to its sum of digits gives 164936442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23484 + ... + 29687.

It is an arithmetic number, because the mean of its divisors is an integer number (11485152).

Almost surely, 2^164936442 is an apocalyptic number.

164936442 is an abundant number, since it is smaller than the sum of its proper divisors (202588422).

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

164936442 is a wasteful number, since it uses less digits than its factorization.

164936442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53234.

The product of its digits is 124416, while the sum is 39.

The square root of 164936442 is about 12842.7583485792. The cubic root of 164936442 is about 548.4102212826.

The spelling of 164936442 in words is "one hundred sixty-four million, nine hundred thirty-six thousand, four hundred forty-two".