164323242 has 20 divisors (see below), whose sum is σ = 368206146. Its totient is φ = 54774360.

The previous prime is 164323231. The next prime is 164323273. The reversal of 164323242 is 242323461.

It can be written as a sum of positive squares in only one way, i.e., 124746561 + 39576681 = 11169^2 + 6291^2 .

It is a super-2 number, since 2×164323242² = 54004255722781128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 507009 + ... + 507332.

Almost surely, 2^164323242 is an apocalyptic number.

164323242 is an abundant number, since it is smaller than the sum of its proper divisors (203882904).

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

164323242 is a wasteful number, since it uses less digits than its factorization.

164323242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014355 (or 1014346 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 164323242 is about 12818.8627420688. The cubic root of 164323242 is about 547.7297515756.

The spelling of 164323242 in words is "one hundred sixty-four million, three hundred twenty-three thousand, two hundred forty-two".