20242315 has 16 divisors (see below), whose sum is σ = 26197920. Its totient is φ = 14964480.

The previous prime is 20242307. The next prime is 20242331. The reversal of 20242315 is 51324202.

It is not a de Polignac number, because 20242315 - 2³ = 20242307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20242292 and 20242301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (1637370).

Almost surely, 2^20242315 is an apocalyptic number.

20242315 is a deficient number, since it is larger than the sum of its proper divisors (5955605).

20242315 is a wasteful number, since it uses less digits than its factorization.

20242315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20242315 is about 4499.1460300817. The cubic root of 20242315 is about 272.5336041380.

Adding to 20242315 its reverse (51324202), we get a palindrome (71566517).

The spelling of 20242315 in words is "twenty million, two hundred forty-two thousand, three hundred fifteen".