20103328 has 36 divisors (see below), whose sum is σ = 46043802. Its totient is φ = 8615040.

The previous prime is 20103319. The next prime is 20103329. The reversal of 20103328 is 82330102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19820304 + 283024 = 4452^2 + 532^2 .

It is not an unprimeable number, because it can be changed into a prime (20103329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4843 + ... + 7978.

Almost surely, 2^20103328 is an apocalyptic number.

20103328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20103328 is an abundant number, since it is smaller than the sum of its proper divisors (25940474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20103328 is a wasteful number, since it uses less digits than its factorization.

20103328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12845 (or 12830 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20103328 is about 4483.6734939110. The cubic root of 20103328 is about 271.9084178414.

The spelling of 20103328 in words is "twenty million, one hundred three thousand, three hundred twenty-eight".