20072386 has 16 divisors (see below), whose sum is σ = 30555000. Its totient is φ = 9888768.

The previous prime is 20072383. The next prime is 20072447. The reversal of 20072386 is 68327002.

It can be written as a sum of positive squares in 4 ways, for example, as 13213225 + 6859161 = 3635^2 + 2619^2 .

It is not an unprimeable number, because it can be changed into a prime (20072383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57340 + ... + 57688.

Almost surely, 2^20072386 is an apocalyptic number.

20072386 is a deficient number, since it is larger than the sum of its proper divisors (10482614).

20072386 is a wasteful number, since it uses less digits than its factorization.

20072386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20072386 is about 4480.2216463028. The cubic root of 20072386 is about 271.7688437629.

Adding to 20072386 its reverse (68327002), we get a palindrome (88399388).

The spelling of 20072386 in words is "twenty million, seventy-two thousand, three hundred eighty-six".