20100038 has 32 divisors (see below), whose sum is σ = 35582976. Its totient is φ = 8337888.

The previous prime is 20100023. The next prime is 20100053. The reversal of 20100038 is 83000102.

It is an interprime number because it is at equal distance from previous prime (20100023) and next prime (20100053).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20099995 and 20100031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76295 + ... + 76557.

It is an arithmetic number, because the mean of its divisors is an integer number (1111968).

Almost surely, 2^20100038 is an apocalyptic number.

20100038 is a deficient number, since it is larger than the sum of its proper divisors (15482938).

20100038 is a wasteful number, since it uses less digits than its factorization.

20100038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20100038 is about 4483.3065922375. The cubic root of 20100038 is about 271.8935840205.

The spelling of 20100038 in words is "twenty million, one hundred thousand, thirty-eight".