20758332 has 48 divisors (see below), whose sum is σ = 56860160. Its totient is φ = 5769792.

The previous prime is 20758303. The next prime is 20758337. The reversal of 20758332 is 23385702.

It is a self number, because there is not a number n which added to its sum of digits gives 20758332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20758337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232 + ... + 6447.

Almost surely, 2^20758332 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 20758332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28430080).

20758332 is an abundant number, since it is smaller than the sum of its proper divisors (36101828).

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

20758332 is a wasteful number, since it uses less digits than its factorization.

20758332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730 (or 6728 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20758332 is about 4556.1312535966. The cubic root of 20758332 is about 274.8300084398.

The spelling of 20758332 in words is "twenty million, seven hundred fifty-eight thousand, three hundred thirty-two".