20299068 has 72 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 6289056.

The previous prime is 20299063. The next prime is 20299073. The reversal of 20299068 is 86099202.

It is an interprime number because it is at equal distance from previous prime (20299063) and next prime (20299073).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40105 + ... + 40607.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^20299068 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 20299068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27518400).

20299068 is an abundant number, since it is smaller than the sum of its proper divisors (34737732).

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

20299068 is a wasteful number, since it uses less digits than its factorization.

20299068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

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

The square root of 20299068 is about 4505.4487012949. The cubic root of 20299068 is about 272.7880655993.

The spelling of 20299068 in words is "twenty million, two hundred ninety-nine thousand, sixty-eight".