18342629 has 4 divisors (see below), whose sum is σ = 18511020. Its totient is φ = 18174240.

The previous prime is 18342601. The next prime is 18342631. The reversal of 18342629 is 92624381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13890529 + 4452100 = 3727^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 18342629 - 2¹⁶ = 18277093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18341629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84032 + ... + 84249.

It is an arithmetic number, because the mean of its divisors is an integer number (4627755).

Almost surely, 2^18342629 is an apocalyptic number.

It is an amenable number.

18342629 is a deficient number, since it is larger than the sum of its proper divisors (168391).

18342629 is a wasteful number, since it uses less digits than its factorization.

18342629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168390.

The product of its digits is 20736, while the sum is 35.

The square root of 18342629 is about 4282.8295553290. The cubic root of 18342629 is about 263.7265543724.

The spelling of 18342629 in words is "eighteen million, three hundred forty-two thousand, six hundred twenty-nine".