20038755 has 16 divisors (see below), whose sum is σ = 34977024. Its totient is φ = 9715680.

The previous prime is 20038747. The next prime is 20038771. The reversal of 20038755 is 55783002.

It is a happy number.

It is not a de Polignac number, because 20038755 - 2³ = 20038747 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 60559 + ... + 60888.

It is an arithmetic number, because the mean of its divisors is an integer number (2186064).

Almost surely, 2^20038755 is an apocalyptic number.

20038755 is a deficient number, since it is larger than the sum of its proper divisors (14938269).

20038755 is a wasteful number, since it uses less digits than its factorization.

20038755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121466.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 20038755 is about 4476.4667987153. The cubic root of 20038755 is about 271.6169772914.

The spelling of 20038755 in words is "twenty million, thirty-eight thousand, seven hundred fifty-five".