164243332 has 24 divisors (see below), whose sum is σ = 323672832. Its totient is φ = 72247200.

The previous prime is 164243329. The next prime is 164243347. The reversal of 164243332 is 233342461.

It is a self number, because there is not a number n which added to its sum of digits gives 164243332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58843 + ... + 61570.

It is an arithmetic number, because the mean of its divisors is an integer number (13486368).

Almost surely, 2^164243332 is an apocalyptic number.

It is an amenable number.

164243332 is a deficient number, since it is larger than the sum of its proper divisors (159429500).

164243332 is a wasteful number, since it uses less digits than its factorization.

164243332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120459 (or 120457 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 164243332 is about 12815.7454718795. The cubic root of 164243332 is about 547.6409506230.

Adding to 164243332 its reverse (233342461), we get a palindrome (397585793).

The spelling of 164243332 in words is "one hundred sixty-four million, two hundred forty-three thousand, three hundred thirty-two".