20299104 has 72 divisors (see below), whose sum is σ = 65978640. Its totient is φ = 5799168.

The previous prime is 20299099. The next prime is 20299109. The reversal of 20299104 is 40199202.

It is an interprime number because it is at equal distance from previous prime (20299099) and next prime (20299109).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3019 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (916370).

Almost surely, 2^20299104 is an apocalyptic number.

20299104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20299104 is an abundant number, since it is smaller than the sum of its proper divisors (45679536).

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

20299104 is a wasteful number, since it uses less digits than its factorization.

20299104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092 (or 10081 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 20299104 is about 4505.4526964557. The cubic root of 20299104 is about 272.7882268607.

The spelling of 20299104 in words is "twenty million, two hundred ninety-nine thousand, one hundred four".