20453324 has 6 divisors (see below), whose sum is σ = 35793324. Its totient is φ = 10226660.

The previous prime is 20453311. The next prime is 20453327. The reversal of 20453324 is 42335402.

It is a self number, because there is not a number n which added to its sum of digits gives 20453324.

It is not an unprimeable number, because it can be changed into a prime (20453327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556662 + ... + 2556669.

It is an arithmetic number, because the mean of its divisors is an integer number (5965554).

Almost surely, 2^20453324 is an apocalyptic number.

It is an amenable number.

20453324 is a deficient number, since it is larger than the sum of its proper divisors (15340000).

20453324 is a wasteful number, since it uses less digits than its factorization.

20453324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113335 (or 5113333 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20453324 is about 4522.5351297696. The cubic root of 20453324 is about 273.4773099632.

Adding to 20453324 its reverse (42335402), we get a palindrome (62788726).

The spelling of 20453324 in words is "twenty million, four hundred fifty-three thousand, three hundred twenty-four".