20947014 has 48 divisors (see below), whose sum is σ = 50281920. Its totient is φ = 6248880.

The previous prime is 20947001. The next prime is 20947021. The reversal of 20947014 is 41074902.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12477 + ... + 14055.

It is an arithmetic number, because the mean of its divisors is an integer number (1047540).

Almost surely, 2^20947014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20947014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25140960).

20947014 is an abundant number, since it is smaller than the sum of its proper divisors (29334906).

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

20947014 is a wasteful number, since it uses less digits than its factorization.

20947014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20947014 is about 4576.7907970542. The cubic root of 20947014 is about 275.6601835476.

The spelling of 20947014 in words is "twenty million, nine hundred forty-seven thousand, fourteen".