347538438 has 80 divisors (see below), whose sum is σ = 853166160. Its totient is φ = 105084864.

The previous prime is 347538419. The next prime is 347538493. The reversal of 347538438 is 834835743.

It is a junction number, because it is equal to n+sod(n) for n = 347538393 and 347538402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 122856 + ... + 125652.

It is an arithmetic number, because the mean of its divisors is an integer number (10664577).

Almost surely, 2^347538438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347538438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426583080).

347538438 is an abundant number, since it is smaller than the sum of its proper divisors (505627722).

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

347538438 is a wasteful number, since it uses less digits than its factorization.

347538438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2874 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 347538438 is about 18642.3828412572. The cubic root of 347538438 is about 703.0738550532.

The spelling of 347538438 in words is "three hundred forty-seven million, five hundred thirty-eight thousand, four hundred thirty-eight".