164020408 has 16 divisors (see below), whose sum is σ = 315850680. Its totient is φ = 79793568.

The previous prime is 164020397. The next prime is 164020421. The reversal of 164020408 is 804020461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276766 + ... + 277357.

Almost surely, 2^164020408 is an apocalyptic number.

It is an amenable number.

164020408 is a deficient number, since it is larger than the sum of its proper divisors (151830272).

164020408 is a wasteful number, since it uses less digits than its factorization.

164020408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554166 (or 554162 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 164020408 is about 12807.0452486122. The cubic root of 164020408 is about 547.3930712830.

Adding to 164020408 its reverse (804020461), we get a palindrome (968040869).

The spelling of 164020408 in words is "one hundred sixty-four million, twenty thousand, four hundred eight".