20346760 has 64 divisors (see below), whose sum is σ = 53424000. Its totient is φ = 6971328.

The previous prime is 20346749. The next prime is 20346763. The reversal of 20346760 is 6764302.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346763) 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 15 ways as a sum of consecutive naturals, for example, 12979 + ... + 14461.

It is an arithmetic number, because the mean of its divisors is an integer number (834750).

Almost surely, 2^20346760 is an apocalyptic number.

20346760 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 20346760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26712000).

20346760 is an abundant number, since it is smaller than the sum of its proper divisors (33077240).

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

20346760 is a wasteful number, since it uses less digits than its factorization.

20346760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20346760 is about 4510.7382987711. The cubic root of 20346760 is about 273.0015340698.

The spelling of 20346760 in words is "twenty million, three hundred forty-six thousand, seven hundred sixty".