169392429 has 12 divisors (see below), whose sum is σ = 257556000. Its totient is φ = 106984584.

The previous prime is 169392427. The next prime is 169392479. The reversal of 169392429 is 924293961.

It is a happy number.

It is not a de Polignac number, because 169392429 - 2¹ = 169392427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169392427) 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 11 ways as a sum of consecutive naturals, for example, 495129 + ... + 495470.

It is an arithmetic number, because the mean of its divisors is an integer number (21463000).

Almost surely, 2^169392429 is an apocalyptic number.

169392429 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

169392429 is a deficient number, since it is larger than the sum of its proper divisors (88163571).

169392429 is a wasteful number, since it uses less digits than its factorization.

169392429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990624 (or 990621 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 169392429 is about 13015.0846712574. The cubic root of 169392429 is about 553.3050897263.

The spelling of 169392429 in words is "one hundred sixty-nine million, three hundred ninety-two thousand, four hundred twenty-nine".