3398695728 has 20 divisors (see below), whose sum is σ = 8779964088. Its totient is φ = 1132898560.

The previous prime is 3398695711. The next prime is 3398695739. The reversal of 3398695728 is 8275968933.

It is a super-2 number, since 2×3398695728² = 23102265303050899968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35403033 + ... + 35403128.

Almost surely, 2^3398695728 is an apocalyptic number.

It is an amenable number.

3398695728 is an abundant number, since it is smaller than the sum of its proper divisors (5381268360).

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

3398695728 is a wasteful number, since it uses less digits than its factorization.

3398695728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70806172 (or 70806166 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The square root of 3398695728 is about 58298.3338355394. Note that the first 3 decimals coincide. The cubic root of 3398695728 is about 1503.5022944801.

The spelling of 3398695728 in words is "three billion, three hundred ninety-eight million, six hundred ninety-five thousand, seven hundred twenty-eight".