18164829 has 8 divisors (see below), whose sum is σ = 24308320. Its totient is φ = 12065616.

The previous prime is 18164819. The next prime is 18164831. The reversal of 18164829 is 92846181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18164829 - 2⁴ = 18164813 is a prime.

It is a super-2 number, since 2×18164829² = 659922025198482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18164819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10099 + ... + 11760.

It is an arithmetic number, because the mean of its divisors is an integer number (3038540).

Almost surely, 2^18164829 is an apocalyptic number.

It is an amenable number.

18164829 is a deficient number, since it is larger than the sum of its proper divisors (6143491).

18164829 is a wasteful number, since it uses less digits than its factorization.

18164829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22139.

The product of its digits is 27648, while the sum is 39.

The square root of 18164829 is about 4262.0217033704. The cubic root of 18164829 is about 262.8716621936.

The spelling of 18164829 in words is "eighteen million, one hundred sixty-four thousand, eight hundred twenty-nine".