20452450 has 24 divisors (see below), whose sum is σ = 38442852. Its totient is φ = 8094720.

The previous prime is 20452429. The next prime is 20452463. The reversal of 20452450 is 5425402.

It can be written as a sum of positive squares in 6 ways, for example, as 11350161 + 9102289 = 3369^2 + 3017^2 .

It is a super-2 number, since 2×20452450² = 836605422005000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2742 + ... + 6958.

Almost surely, 2^20452450 is an apocalyptic number.

20452450 is a deficient number, since it is larger than the sum of its proper divisors (17990402).

20452450 is a wasteful number, since it uses less digits than its factorization.

20452450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20452450 is about 4522.4385015166. The cubic root of 20452450 is about 273.4734145479.

Adding to 20452450 its reverse (5425402), we get a palindrome (25877852).

It can be divided in two parts, 20452 and 450, that added together give a palindrome (20902).

The spelling of 20452450 in words is "twenty million, four hundred fifty-two thousand, four hundred fifty".