20383672 has 8 divisors (see below), whose sum is σ = 38219400. Its totient is φ = 10191832.

The previous prime is 20383669. The next prime is 20383673. The reversal of 20383672 is 27638302.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273972 + ... + 1273987.

It is an arithmetic number, because the mean of its divisors is an integer number (4777425).

Almost surely, 2^20383672 is an apocalyptic number.

It is an amenable number.

20383672 is a deficient number, since it is larger than the sum of its proper divisors (17835728).

20383672 is a wasteful number, since it uses less digits than its factorization.

20383672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547965 (or 2547961 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 20383672 is about 4514.8280144431. The cubic root of 20383672 is about 273.1665225827.

The spelling of 20383672 in words is "twenty million, three hundred eighty-three thousand, six hundred seventy-two".