20653074 has 24 divisors (see below), whose sum is σ = 48191052. Its totient is φ = 6354720.

The previous prime is 20653063. The next prime is 20653081. The reversal of 20653074 is 47035602.

It is a happy number.

20653074 is a `hidden beast` number, since 2 + 0 + 653 + 0 + 7 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15657849 + 4995225 = 3957^2 + 2235^2 .

It is a Curzon number.

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, 43897 + ... + 44364.

Almost surely, 2^20653074 is an apocalyptic number.

20653074 is an abundant number, since it is smaller than the sum of its proper divisors (27537978).

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

20653074 is a wasteful number, since it uses less digits than its factorization.

20653074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88282 (or 88279 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20653074 is about 4544.5653257490. The cubic root of 20653074 is about 274.3646998622.

Adding to 20653074 its reverse (47035602), we get a palindrome (67688676).

The spelling of 20653074 in words is "twenty million, six hundred fifty-three thousand, seventy-four".