3479138949 has 48 divisors (see below), whose sum is σ = 5562169344. Its totient is φ = 1917115200.

The previous prime is 3479138941. The next prime is 3479138969. The reversal of 3479138949 is 9498319743.

It is not a de Polignac number, because 3479138949 - 2³ = 3479138941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3479138941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 369004 + ... + 378314.

It is an arithmetic number, because the mean of its divisors is an integer number (115878528).

Almost surely, 2^3479138949 is an apocalyptic number.

3479138949 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3479138949 is a deficient number, since it is larger than the sum of its proper divisors (2083030395).

3479138949 is a wasteful number, since it uses less digits than its factorization.

3479138949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9418 (or 9405 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 57.

The square root of 3479138949 is about 58984.2262727926. The cubic root of 3479138949 is about 1515.2719759184.

The spelling of 3479138949 in words is "three billion, four hundred seventy-nine million, one hundred thirty-eight thousand, nine hundred forty-nine".