3388998728 has 8 divisors (see below), whose sum is σ = 6354372630. Its totient is φ = 1694499360.

The previous prime is 3388998727. The next prime is 3388998751. The reversal of 3388998728 is 8278998833.

It can be written as a sum of positive squares in only one way, i.e., 1753766884 + 1635231844 = 41878^2 + 40438^2 .

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

It is a super-2 number, since 2×3388998728² = 22970624756771235968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3388998721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211812413 + ... + 211812428.

Almost surely, 2^3388998728 is an apocalyptic number.

It is an amenable number.

3388998728 is a deficient number, since it is larger than the sum of its proper divisors (2965373902).

3388998728 is a wasteful number, since it uses less digits than its factorization.

3388998728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423624847 (or 423624843 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 65.

The square root of 3388998728 is about 58215.1073863134. The cubic root of 3388998728 is about 1502.0710248843.

The spelling of 3388998728 in words is "three billion, three hundred eighty-eight million, nine hundred ninety-eight thousand, seven hundred twenty-eight".