347138946 has 160 divisors (see below), whose sum is σ = 1027458432. Its totient is φ = 84810240.

The previous prime is 347138941. The next prime is 347138959. The reversal of 347138946 is 649831743.

It is not an unprimeable number, because it can be changed into a prime (347138941) 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 79 ways as a sum of consecutive naturals, for example, 211240 + ... + 212876.

Almost surely, 2^347138946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347138946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513729216).

347138946 is an abundant number, since it is smaller than the sum of its proper divisors (680319486).

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

347138946 is a wasteful number, since it uses less digits than its factorization.

347138946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1677 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 347138946 is about 18631.6651429764. The cubic root of 347138946 is about 702.8043596165.

The spelling of 347138946 in words is "three hundred forty-seven million, one hundred thirty-eight thousand, nine hundred forty-six".