349428719 has 8 divisors (see below), whose sum is σ = 364820352. Its totient is φ = 334053720.

The previous prime is 349428697. The next prime is 349428721. The reversal of 349428719 is 917824943.

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

It is a cyclic number.

It is not a de Polignac number, because 349428719 - 2²⁴ = 332651503 is a prime.

It is a super-2 number, since 2×349428719² = 244200859323961922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349428799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60032 + ... + 65594.

It is an arithmetic number, because the mean of its divisors is an integer number (45602544).

Almost surely, 2^349428719 is an apocalyptic number.

349428719 is a deficient number, since it is larger than the sum of its proper divisors (15391633).

349428719 is a wasteful number, since it uses less digits than its factorization.

349428719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317.

The product of its digits is 435456, while the sum is 47.

The square root of 349428719 is about 18693.0125715466. The cubic root of 349428719 is about 704.3462369871.

The spelling of 349428719 in words is "three hundred forty-nine million, four hundred twenty-eight thousand, seven hundred nineteen".