20331060 has 24 divisors (see below), whose sum is σ = 56927136. Its totient is φ = 5421600.

The previous prime is 20331053. The next prime is 20331061. The reversal of 20331060 is 6013302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169366 + ... + 169485.

It is an arithmetic number, because the mean of its divisors is an integer number (2371964).

Almost surely, 2^20331060 is an apocalyptic number.

20331060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331060 is an abundant number, since it is smaller than the sum of its proper divisors (36596076).

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

20331060 is a wasteful number, since it uses less digits than its factorization.

20331060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338863 (or 338861 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20331060 is about 4508.9976713234. The cubic root of 20331060 is about 272.9312980391.

Adding to 20331060 its reverse (6013302), we get a palindrome (26344362).

The spelling of 20331060 in words is "twenty million, three hundred thirty-one thousand, sixty".