20614664 has 32 divisors (see below), whose sum is σ = 44513280. Its totient is φ = 8767104.

The previous prime is 20614619. The next prime is 20614667. The reversal of 20614664 is 46641602.

It is not an unprimeable number, because it can be changed into a prime (20614667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6329 + ... + 9015.

It is an arithmetic number, because the mean of its divisors is an integer number (1391040).

Almost surely, 2^20614664 is an apocalyptic number.

It is an amenable number.

20614664 is an abundant number, since it is smaller than the sum of its proper divisors (23898616).

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

20614664 is a wasteful number, since it uses less digits than its factorization.

20614664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20614664 is about 4540.3374323942. The cubic root of 20614664 is about 274.1945090898.

The spelling of 20614664 in words is "twenty million, six hundred fourteen thousand, six hundred sixty-four".