164403402 has 32 divisors (see below), whose sum is σ = 344642688. Its totient is φ = 52183296.

The previous prime is 164403401. The next prime is 164403439. The reversal of 164403402 is 204304461.

It is a super-3 number, since 3×164403402³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164403401) 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, 29598 + ... + 34710.

It is an arithmetic number, because the mean of its divisors is an integer number (10770084).

Almost surely, 2^164403402 is an apocalyptic number.

164403402 is an abundant number, since it is smaller than the sum of its proper divisors (180239286).

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

164403402 is a wasteful number, since it uses less digits than its factorization.

164403402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 164403402 is about 12821.9890032709. The cubic root of 164403402 is about 547.8188014241.

Adding to 164403402 its reverse (204304461), we get a palindrome (368707863).

The spelling of 164403402 in words is "one hundred sixty-four million, four hundred three thousand, four hundred two".