20767212 has 48 divisors (see below), whose sum is σ = 55306720. Its totient is φ = 6734016.

The previous prime is 20767207. The next prime is 20767213. The reversal of 20767212 is 21276702.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20767213) 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, 1398 + ... + 6594.

Almost surely, 2^20767212 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 20767212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27653360).

20767212 is an abundant number, since it is smaller than the sum of its proper divisors (34539508).

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

20767212 is a wasteful number, since it uses less digits than its factorization.

20767212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247 (or 5239 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20767212 is about 4557.1056603945. The cubic root of 20767212 is about 274.8691917833.

The spelling of 20767212 in words is "twenty million, seven hundred sixty-seven thousand, two hundred twelve".