168204036 has 288 divisors, whose sum is σ = 567239680. Its totient is φ = 37635840.

The previous prime is 168204019. The next prime is 168204053. The reversal of 168204036 is 630402861.

It is an interprime number because it is at equal distance from previous prime (168204019) and next prime (168204053).

It is a junction number, because it is equal to n+sod(n) for n = 168203994 and 168204012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2510475 + ... + 2510541.

Almost surely, 2^168204036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168204036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283619840).

168204036 is an abundant number, since it is smaller than the sum of its proper divisors (399035644).

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

168204036 is a wasteful number, since it uses less digits than its factorization.

168204036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 168204036 is about 12969.3498680543. The cubic root of 168204036 is about 552.0081257993.

Adding to 168204036 its reverse (630402861), we get a palindrome (798606897).

The spelling of 168204036 in words is "one hundred sixty-eight million, two hundred four thousand, thirty-six".