20100032 has 14 divisors (see below), whose sum is σ = 39886128. Its totient is φ = 10049984.

The previous prime is 20100023. The next prime is 20100053. The reversal of 20100032 is 23000102.

It is a super-2 number, since 2×20100032² = 808022572802048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 20099992 and 20100019.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 156968 + ... + 157095.

Almost surely, 2^20100032 is an apocalyptic number.

It is an amenable number.

20100032 is a deficient number, since it is larger than the sum of its proper divisors (19786096).

20100032 is an equidigital number, since it uses as much as digits as its factorization.

20100032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314075 (or 314065 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20100032 is about 4483.3059230885. The cubic root of 20100032 is about 271.8935569665.

Adding to 20100032 its reverse (23000102), we get a palindrome (43100134).

The spelling of 20100032 in words is "twenty million, one hundred thousand, thirty-two".