20373393 has 4 divisors (see below), whose sum is σ = 27164528. Its totient is φ = 13582260.

The previous prime is 20373391. The next prime is 20373401. The reversal of 20373393 is 39337302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20373393 - 2¹ = 20373391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20373393.

It is not an unprimeable number, because it can be changed into a prime (20373391) 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, 3395563 + ... + 3395568.

It is an arithmetic number, because the mean of its divisors is an integer number (6791132).

Almost surely, 2^20373393 is an apocalyptic number.

It is an amenable number.

20373393 is a deficient number, since it is larger than the sum of its proper divisors (6791135).

20373393 is an equidigital number, since it uses as much as digits as its factorization.

20373393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791134.

The product of its (nonzero) digits is 10206, while the sum is 30.

The square root of 20373393 is about 4513.6895108104. The cubic root of 20373393 is about 273.1205977399.

The spelling of 20373393 in words is "twenty million, three hundred seventy-three thousand, three hundred ninety-three".