20883672 has 48 divisors (see below), whose sum is σ = 57213000. Its totient is φ = 6880896.

The previous prime is 20883671. The next prime is 20883697. The reversal of 20883672 is 27638802.

It is a happy number.

It is a super-2 number, since 2×20883672² = 872255512407168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20883671) 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 11 ways as a sum of consecutive naturals, for example, 4779 + ... + 8037.

Almost surely, 2^20883672 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 20883672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28606500).

20883672 is an abundant number, since it is smaller than the sum of its proper divisors (36329328).

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

20883672 is a wasteful number, since it uses less digits than its factorization.

20883672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 20883672 is about 4569.8656435392. The cubic root of 20883672 is about 275.3820453042.

The spelling of 20883672 in words is "twenty million, eight hundred eighty-three thousand, six hundred seventy-two".