20761832 has 96 divisors (see below), whose sum is σ = 51206400. Its totient is φ = 7682688.

The previous prime is 20761823. The next prime is 20761841. The reversal of 20761832 is 23816702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20761823) and next prime (20761841).

It is a junction number, because it is equal to n+sod(n) for n = 20761795 and 20761804.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 262769 + ... + 262847.

It is an arithmetic number, because the mean of its divisors is an integer number (533400).

Almost surely, 2^20761832 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 20761832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25603200).

20761832 is an abundant number, since it is smaller than the sum of its proper divisors (30444568).

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

20761832 is a wasteful number, since it uses less digits than its factorization.

20761832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20761832 is about 4556.5153352096. The cubic root of 20761832 is about 274.8454536592.

The spelling of 20761832 in words is "twenty million, seven hundred sixty-one thousand, eight hundred thirty-two".