20048831 has 16 divisors (see below), whose sum is σ = 23963040. Its totient is φ = 16558080.

The previous prime is 20048807. The next prime is 20048863. The reversal of 20048831 is 13884002.

It is a de Polignac number, because none of the positive numbers 2^k-20048831 is a prime.

It is a super-2 number, since 2×20048831² = 803911248933122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20048831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3575 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (1497690).

Almost surely, 2^20048831 is an apocalyptic number.

20048831 is a deficient number, since it is larger than the sum of its proper divisors (3914209).

20048831 is a wasteful number, since it uses less digits than its factorization.

20048831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3754.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20048831 is about 4477.5920984386. The cubic root of 20048831 is about 271.6624949907.

The spelling of 20048831 in words is "twenty million, forty-eight thousand, eight hundred thirty-one".