3938898816 has 96 divisors (see below), whose sum is σ = 11931215400. Its totient is φ = 1243855872.

The previous prime is 3938898767. The next prime is 3938898829. The reversal of 3938898816 is 6188988393.

3938898816 is a `hidden beast` number, since 393 + 88 + 98 + 81 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×3938898816³ (a number of 30 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68091 + ... + 111866.

Almost surely, 2^3938898816 is an apocalyptic number.

3938898816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3938898816 is an abundant number, since it is smaller than the sum of its proper divisors (7992316584).

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

3938898816 is a wasteful number, since it uses less digits than its factorization.

3938898816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179996 (or 179981 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The square root of 3938898816 is about 62760.6470329935. The cubic root of 3938898816 is about 1579.2768703939.

The spelling of 3938898816 in words is "three billion, nine hundred thirty-eight million, eight hundred ninety-eight thousand, eight hundred sixteen".