349742419 has 4 divisors (see below), whose sum is σ = 376645696. Its totient is φ = 322839144.

The previous prime is 349742413. The next prime is 349742461. The reversal of 349742419 is 914247943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914247943 = 7 ⋅130606849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349742419 is a prime.

It is a super-2 number, since 2×349742419² = 244639519295943122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349742413) 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, 13451619 + ... + 13451644.

It is an arithmetic number, because the mean of its divisors is an integer number (94161424).

Almost surely, 2^349742419 is an apocalyptic number.

349742419 is a deficient number, since it is larger than the sum of its proper divisors (26903277).

349742419 is a wasteful number, since it uses less digits than its factorization.

349742419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26903276.

The product of its digits is 217728, while the sum is 43.

The square root of 349742419 is about 18701.4015250195. The cubic root of 349742419 is about 704.5569498022.

The spelling of 349742419 in words is "three hundred forty-nine million, seven hundred forty-two thousand, four hundred nineteen".