2103302728 has 8 divisors (see below), whose sum is σ = 3943692630. Its totient is φ = 1051651360.

The previous prime is 2103302723. The next prime is 2103302771. The reversal of 2103302728 is 8272033012.

It can be written as a sum of positive squares in only one way, i.e., 1409401764 + 693900964 = 37542^2 + 26342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2103302728² = 8847764731224483968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2103302696 and 2103302705.

It is not an unprimeable number, because it can be changed into a prime (2103302723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131456413 + ... + 131456428.

Almost surely, 2^2103302728 is an apocalyptic number.

It is an amenable number.

2103302728 is a deficient number, since it is larger than the sum of its proper divisors (1840389902).

2103302728 is a wasteful number, since it uses less digits than its factorization.

2103302728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262912847 (or 262912843 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2103302728 is about 45861.7785089065. The cubic root of 2103302728 is about 1281.2501474265.

The spelling of 2103302728 in words is "two billion, one hundred three million, three hundred two thousand, seven hundred twenty-eight".