20064992 has 24 divisors (see below), whose sum is σ = 39606336. Its totient is φ = 10006272.

The previous prime is 20064977. The next prime is 20064997. The reversal of 20064992 is 29946002.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18908 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (1650264).

Almost surely, 2^20064992 is an apocalyptic number.

It is an amenable number.

20064992 is a deficient number, since it is larger than the sum of its proper divisors (19541344).

20064992 is a wasteful number, since it uses less digits than its factorization.

20064992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20064992 is about 4479.3963879076. The cubic root of 20064992 is about 271.7354694608.

The spelling of 20064992 in words is "twenty million, sixty-four thousand, nine hundred ninety-two".