20135368 has 64 divisors (see below), whose sum is σ = 43568640. Its totient is φ = 8712000.

The previous prime is 20135359. The next prime is 20135377. The reversal of 20135368 is 86353102.

It is an interprime number because it is at equal distance from previous prime (20135359) and next prime (20135377).

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 15 ways as a sum of consecutive naturals, for example, 330058 + ... + 330118.

It is an arithmetic number, because the mean of its divisors is an integer number (680760).

Almost surely, 2^20135368 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 20135368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21784320).

20135368 is an abundant number, since it is smaller than the sum of its proper divisors (23433272).

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

20135368 is a wasteful number, since it uses less digits than its factorization.

20135368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20135368 is about 4487.2450345396. The cubic root of 20135368 is about 272.0527939622.

It can be divided in two parts, 20135 and 368, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20135368 in words is "twenty million, one hundred thirty-five thousand, three hundred sixty-eight".