169490936 has 8 divisors (see below), whose sum is σ = 317795520. Its totient is φ = 84745464.

The previous prime is 169490911. The next prime is 169490939. The reversal of 169490936 is 639094961.

169490936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169490939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10593176 + ... + 10593191.

It is an arithmetic number, because the mean of its divisors is an integer number (39724440).

Almost surely, 2^169490936 is an apocalyptic number.

It is an amenable number.

169490936 is a deficient number, since it is larger than the sum of its proper divisors (148304584).

169490936 is a wasteful number, since it uses less digits than its factorization.

169490936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186373 (or 21186369 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 169490936 is about 13018.8684608149. The cubic root of 169490936 is about 553.4123236856.

The spelling of 169490936 in words is "one hundred sixty-nine million, four hundred ninety thousand, nine hundred thirty-six".