20701912 has 48 divisors (see below), whose sum is σ = 49268520. Its totient is φ = 8064000.

The previous prime is 20701897. The next prime is 20701913. The reversal of 20701912 is 21910702.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912 + ... + 6712.

Almost surely, 2^20701912 is an apocalyptic number.

20701912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20701912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24634260).

20701912 is an abundant number, since it is smaller than the sum of its proper divisors (28566608).

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

20701912 is a wasteful number, since it uses less digits than its factorization.

20701912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832 (or 4821 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 20701912 is about 4549.9353841566. The cubic root of 20701912 is about 274.5807915889.

The spelling of 20701912 in words is "twenty million, seven hundred one thousand, nine hundred twelve".