20652678 has 16 divisors (see below), whose sum is σ = 45894960. Its totient is φ = 6884208.

The previous prime is 20652673. The next prime is 20652701. The reversal of 20652678 is 87625602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 191175 + ... + 191282.

It is an arithmetic number, because the mean of its divisors is an integer number (2868435).

Almost surely, 2^20652678 is an apocalyptic number.

20652678 is an abundant number, since it is smaller than the sum of its proper divisors (25242282).

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

20652678 is a wasteful number, since it uses less digits than its factorization.

20652678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382468 (or 382462 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 20652678 is about 4544.5217570169. The cubic root of 20652678 is about 274.3629463038.

The spelling of 20652678 in words is "twenty million, six hundred fifty-two thousand, six hundred seventy-eight".