20465452 has 12 divisors (see below), whose sum is σ = 40930960. Its totient is φ = 8770896.

The previous prime is 20465449. The next prime is 20465491. The reversal of 20465452 is 25456402.

20465452 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 730909 = 20465452 / (2 + 0 + 4 + 6 + 5 + 4 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 20465452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365427 + ... + 365482.

Almost surely, 2^20465452 is an apocalyptic number.

It is an amenable number.

20465452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20465452 is a wasteful number, since it uses less digits than its factorization.

20465452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730920 (or 730918 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20465452 is about 4523.8757719460. The cubic root of 20465452 is about 273.5313529714.

It can be divided in two parts, 204 and 65452, that added together give a palindrome (65656).

The spelling of 20465452 in words is "twenty million, four hundred sixty-five thousand, four hundred fifty-two".