164040489 has 12 divisors (see below), whose sum is σ = 237060096. Its totient is φ = 109308312.

The previous prime is 164040469. The next prime is 164040491. The reversal of 164040489 is 984040461.

It is a happy number.

164040489 is a `hidden beast` number, since 1 + 640 + 4 + 0 + 4 + 8 + 9 = 666.

164040489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164040489 - 2¹² = 164036393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164040449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29704 + ... + 34790.

It is an arithmetic number, because the mean of its divisors is an integer number (19755008).

Almost surely, 2^164040489 is an apocalyptic number.

It is an amenable number.

164040489 is a deficient number, since it is larger than the sum of its proper divisors (73019607).

164040489 is a wasteful number, since it uses less digits than its factorization.

164040489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 164040489 is about 12807.8292071686. The cubic root of 164040489 is about 547.4154094620.

The spelling of 164040489 in words is "one hundred sixty-four million, forty thousand, four hundred eighty-nine".