20068290 has 128 divisors (see below), whose sum is σ = 60652800. Its totient is φ = 4677120.

The previous prime is 20068289. The next prime is 20068303. The reversal of 20068290 is 9286002.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86014 + ... + 86246.

It is an arithmetic number, because the mean of its divisors is an integer number (473850).

Almost surely, 2^20068290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20068290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30326400).

20068290 is an abundant number, since it is smaller than the sum of its proper divisors (40584510).

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

20068290 is a wasteful number, since it uses less digits than its factorization.

20068290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20068290 is about 4479.7645027390. The cubic root of 20068290 is about 271.7503566581.

It can be divided in two parts, 2006 and 8290, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 20068290 in words is "twenty million, sixty-eight thousand, two hundred ninety".