20726160 has 240 divisors, whose sum is σ = 80601984. Its totient is φ = 4313088.

The previous prime is 20726149. The next prime is 20726171. The reversal of 20726160 is 6162702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20726149) and next prime (20726171).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20726160.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 283884 + ... + 283956.

Almost surely, 2^20726160 is an apocalyptic number.

20726160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20726160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40300992).

20726160 is an abundant number, since it is smaller than the sum of its proper divisors (59875824).

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

20726160 is a wasteful number, since it uses less digits than its factorization.

20726160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20726160 is about 4552.5992575670. The cubic root of 20726160 is about 274.6879545926.

Adding to 20726160 its reverse (6162702), we get a palindrome (26888862).

The spelling of 20726160 in words is "twenty million, seven hundred twenty-six thousand, one hundred sixty".