20632086 has 24 divisors (see below), whose sum is σ = 44942040. Its totient is φ = 6840576.

The previous prime is 20632037. The next prime is 20632093. The reversal of 20632086 is 68023602.

20632086 is a `hidden beast` number, since 20 + 632 + 0 + 8 + 6 = 666.

It is a super-4 number, since 4×20632086⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent 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, 505 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (1872585).

Almost surely, 2^20632086 is an apocalyptic number.

20632086 is an abundant number, since it is smaller than the sum of its proper divisors (24309954).

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

20632086 is a wasteful number, since it uses less digits than its factorization.

20632086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140 (or 6137 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20632086 is about 4542.2556070745. The cubic root of 20632086 is about 274.2717303604.

Adding to 20632086 its reverse (68023602), we get a palindrome (88655688).

The spelling of 20632086 in words is "twenty million, six hundred thirty-two thousand, eighty-six".