18334007 has 4 divisors (see below), whose sum is σ = 19412496. Its totient is φ = 17255520.

The previous prime is 18333983. The next prime is 18334009. The reversal of 18334007 is 70043381.

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

It is a cyclic number.

It is not a de Polignac number, because 18334007 - 2⁶ = 18333943 is a prime.

It is a super-2 number, since 2×18334007² = 672271625352098, 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 (18334009) 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 3 ways as a sum of consecutive naturals, for example, 539219 + ... + 539252.

It is an arithmetic number, because the mean of its divisors is an integer number (4853124).

Almost surely, 2^18334007 is an apocalyptic number.

18334007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18334007 is a deficient number, since it is larger than the sum of its proper divisors (1078489).

18334007 is a wasteful number, since it uses less digits than its factorization.

18334007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078488.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 18334007 is about 4281.8228594840. The cubic root of 18334007 is about 263.6852261142.

Adding to 18334007 its reverse (70043381), we get a palindrome (88377388).

The spelling of 18334007 in words is "eighteen million, three hundred thirty-four thousand, seven".