349086478 has 8 divisors (see below), whose sum is σ = 563908968. Its totient is φ = 161116824.

The previous prime is 349086473. The next prime is 349086503. The reversal of 349086478 is 874680943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×349086478² = 243722738244888968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349086473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713176 + ... + 6713227.

It is an arithmetic number, because the mean of its divisors is an integer number (70488621).

Almost surely, 2^349086478 is an apocalyptic number.

349086478 is a deficient number, since it is larger than the sum of its proper divisors (214822490).

349086478 is a wasteful number, since it uses less digits than its factorization.

349086478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426418.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 349086478 is about 18683.8560795142. The cubic root of 349086478 is about 704.1162092404.

The spelling of 349086478 in words is "three hundred forty-nine million, eighty-six thousand, four hundred seventy-eight".