20229373 has 4 divisors (see below), whose sum is σ = 20408508. Its totient is φ = 20050240.

The previous prime is 20229367. The next prime is 20229379. The reversal of 20229373 is 37392202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37392202 = 2 ⋅18696101.

It is an interprime number because it is at equal distance from previous prime (20229367) and next prime (20229379).

It can be written as a sum of positive squares in 2 ways, for example, as 2022084 + 18207289 = 1422^2 + 4267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20229373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20229379) 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, 89398 + ... + 89623.

It is an arithmetic number, because the mean of its divisors is an integer number (5102127).

Almost surely, 2^20229373 is an apocalyptic number.

It is an amenable number.

20229373 is a deficient number, since it is larger than the sum of its proper divisors (179135).

20229373 is a wasteful number, since it uses less digits than its factorization.

20229373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179134.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20229373 is about 4497.7075271743. The cubic root of 20229373 is about 272.4755099614.

It can be divided in two parts, 20229 and 373, that added together give a palindrome (20602).

The spelling of 20229373 in words is "twenty million, two hundred twenty-nine thousand, three hundred seventy-three".