20232836 has 24 divisors (see below), whose sum is σ = 39448920. Its totient is φ = 9015552.

The previous prime is 20232787. The next prime is 20232841. The reversal of 20232836 is 63823202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 430336 + 19802500 = 656^2 + 4450^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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 7 ways as a sum of consecutive naturals, for example, 5201 + ... + 8216.

It is an arithmetic number, because the mean of its divisors is an integer number (1643705).

Almost surely, 2^20232836 is an apocalyptic number.

20232836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20232836 is a deficient number, since it is larger than the sum of its proper divisors (19216084).

20232836 is a wasteful number, since it uses less digits than its factorization.

20232836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463 (or 13461 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20232836 is about 4498.0924845983. The cubic root of 20232836 is about 272.4910571371.

The spelling of 20232836 in words is "twenty million, two hundred thirty-two thousand, eight hundred thirty-six".