20242345 has 8 divisors (see below), whose sum is σ = 24382080. Its totient is φ = 16133040.

The previous prime is 20242333. The next prime is 20242351. The reversal of 20242345 is 54324202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20242345 - 2⁹ = 20241833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6115 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (3047760).

Almost surely, 2^20242345 is an apocalyptic number.

It is an amenable number.

20242345 is a deficient number, since it is larger than the sum of its proper divisors (4139735).

20242345 is a wasteful number, since it uses less digits than its factorization.

20242345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20242345 is about 4499.1493640465. The cubic root of 20242345 is about 272.5337387735.

Adding to 20242345 its reverse (54324202), we get a palindrome (74566547).

The spelling of 20242345 in words is "twenty million, two hundred forty-two thousand, three hundred forty-five".