3938794506 has 32 divisors (see below), whose sum is σ = 9213556800. Its totient is φ = 1243829520.

The previous prime is 3938794499. The next prime is 3938794507. The reversal of 3938794506 is 6054978393.

3938794506 is a `hidden beast` number, since 39 + 38 + 79 + 4 + 506 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3938794507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918465 + ... + 1920516.

It is an arithmetic number, because the mean of its divisors is an integer number (287923650).

Almost surely, 2^3938794506 is an apocalyptic number.

3938794506 is an abundant number, since it is smaller than the sum of its proper divisors (5274762294).

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

3938794506 is a wasteful number, since it uses less digits than its factorization.

3938794506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839011 (or 3839005 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 3938794506 is about 62759.8160131146. The cubic root of 3938794506 is about 1579.2629294566.

The spelling of 3938794506 in words is "three billion, nine hundred thirty-eight million, seven hundred ninety-four thousand, five hundred six".