164040402 has 8 divisors (see below), whose sum is σ = 328080816. Its totient is φ = 54680132.

The previous prime is 164040391. The next prime is 164040403. The reversal of 164040402 is 204040461.

164040402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

164040402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (164040403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13670028 + ... + 13670039.

It is an arithmetic number, because the mean of its divisors is an integer number (41010102).

Almost surely, 2^164040402 is an apocalyptic number.

164040402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

164040402 is a wasteful number, since it uses less digits than its factorization.

164040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27340072.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 164040402 is about 12807.8258108080. The cubic root of 164040402 is about 547.4153126868.

Adding to 164040402 its reverse (204040461), we get a palindrome (368080863).

The spelling of 164040402 in words is "one hundred sixty-four million, forty thousand, four hundred two".