18290934 has 40 divisors (see below), whose sum is σ = 42775920. Its totient is φ = 5830704.

The previous prime is 18290927. The next prime is 18290941. The reversal of 18290934 is 43909281.

It is an interprime number because it is at equal distance from previous prime (18290927) and next prime (18290941).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1272 + ... + 6180.

It is an arithmetic number, because the mean of its divisors is an integer number (1069398).

Almost surely, 2^18290934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18290934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21387960).

18290934 is an abundant number, since it is smaller than the sum of its proper divisors (24484986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18290934 is a wasteful number, since it uses less digits than its factorization.

18290934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 18290934 is about 4276.7901515038. The cubic root of 18290934 is about 263.4785678937.

The spelling of 18290934 in words is "eighteen million, two hundred ninety thousand, nine hundred thirty-four".