3938461506 has 24 divisors (see below), whose sum is σ = 9752381184. Its totient is φ = 1125274680.

The previous prime is 3938461477. The next prime is 3938461507. The reversal of 3938461506 is 6051648393.

3938461506 is a `hidden beast` number, since 3 + 9 + 3 + 84 + 61 + 506 = 666.

It is a super-2 number, since 2×3938461506² = 31022958068487576072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3938461507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15628690 + ... + 15628941.

It is an arithmetic number, because the mean of its divisors is an integer number (406349216).

Almost surely, 2^3938461506 is an apocalyptic number.

3938461506 is an abundant number, since it is smaller than the sum of its proper divisors (5813919678).

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

3938461506 is a wasteful number, since it uses less digits than its factorization.

3938461506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31257646 (or 31257643 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 3938461506 is about 62757.1629855907. The cubic root of 3938461506 is about 1579.2184226601.

The spelling of 3938461506 in words is "three billion, nine hundred thirty-eight million, four hundred sixty-one thousand, five hundred six".