20623914 has 12 divisors (see below), whose sum is σ = 44685186. Its totient is φ = 6874632.

The previous prime is 20623909. The next prime is 20623919. The reversal of 20623914 is 41932602.

20623914 is a `hidden beast` number, since 20 + 623 + 9 + 14 = 666.

It is an interprime number because it is at equal distance from previous prime (20623909) and next prime (20623919).

It can be written as a sum of positive squares in only one way, i.e., 17264025 + 3359889 = 4155^2 + 1833^2 .

It is not an unprimeable number, because it can be changed into a prime (20623919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572869 + ... + 572904.

Almost surely, 2^20623914 is an apocalyptic number.

20623914 is an abundant number, since it is smaller than the sum of its proper divisors (24061272).

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

20623914 is a wasteful number, since it uses less digits than its factorization.

20623914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145781 (or 1145778 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20623914 is about 4541.3559649074. The cubic root of 20623914 is about 274.2355142039.

The spelling of 20623914 in words is "twenty million, six hundred twenty-three thousand, nine hundred fourteen".