18354004 has 12 divisors (see below), whose sum is σ = 32196724. Its totient is φ = 9154944.

The previous prime is 18353989. The next prime is 18354029. The reversal of 18354004 is 40045381.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 17139600 = 1102^2 + 4140^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18354004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567 + ... + 7030.

Almost surely, 2^18354004 is an apocalyptic number.

It is an amenable number.

18354004 is a deficient number, since it is larger than the sum of its proper divisors (13842720).

18354004 is a wasteful number, since it uses less digits than its factorization.

18354004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11034 (or 11032 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 18354004 is about 4284.1573267097. The cubic root of 18354004 is about 263.7810589121.

Adding to 18354004 its reverse (40045381), we get a palindrome (58399385).

The spelling of 18354004 in words is "eighteen million, three hundred fifty-four thousand, four".