163389429 has 24 divisors (see below), whose sum is σ = 271456640. Its totient is φ = 92765088.

The previous prime is 163389427. The next prime is 163389433. The reversal of 163389429 is 924983361.

It is a happy number.

163389429 is a `hidden beast` number, since 1 + 633 + 8 + 9 + 4 + 2 + 9 = 666.

It is not a de Polignac number, because 163389429 - 2¹ = 163389427 is a prime.

It is a super-2 number, since 2×163389429² = 53392211017892082, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163389427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1632 + ... + 18150.

Almost surely, 2^163389429 is an apocalyptic number.

It is an amenable number.

163389429 is a deficient number, since it is larger than the sum of its proper divisors (108067211).

163389429 is a wasteful number, since it uses less digits than its factorization.

163389429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16689 (or 16686 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 163389429 is about 12782.3874530543. The cubic root of 163389429 is about 546.6902372265.

The spelling of 163389429 in words is "one hundred sixty-three million, three hundred eighty-nine thousand, four hundred twenty-nine".