20365672 has 32 divisors (see below), whose sum is σ = 40164480. Its totient is φ = 9662400.

The previous prime is 20365637. The next prime is 20365691. The reversal of 20365672 is 27656302.

It is a super-3 number, since 3×20365672³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 27418 + ... + 28150.

It is an arithmetic number, because the mean of its divisors is an integer number (1255140).

Almost surely, 2^20365672 is an apocalyptic number.

It is an amenable number.

20365672 is a deficient number, since it is larger than the sum of its proper divisors (19798808).

20365672 is a wasteful number, since it uses less digits than its factorization.

20365672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 20365672 is about 4512.8341427533. The cubic root of 20365672 is about 273.0860914505.

The spelling of 20365672 in words is "twenty million, three hundred sixty-five thousand, six hundred seventy-two".