20534450 has 24 divisors (see below), whose sum is σ = 38422020. Its totient is φ = 8164800.

The previous prime is 20534443. The next prime is 20534461. The reversal of 20534450 is 5443502.

It can be written as a sum of positive squares in 6 ways, for example, as 4489 + 20529961 = 67^2 + 4531^2 .

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, 7916 + ... + 10184.

Almost surely, 2^20534450 is an apocalyptic number.

20534450 is a deficient number, since it is larger than the sum of its proper divisors (17887570).

20534450 is a wasteful number, since it uses less digits than its factorization.

20534450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 20534450 is about 4531.4953381858. The cubic root of 20534450 is about 273.8384061470.

Adding to 20534450 its reverse (5443502), we get a palindrome (25977952).

The spelling of 20534450 in words is "twenty million, five hundred thirty-four thousand, four hundred fifty".