349448749 has 8 divisors (see below), whose sum is σ = 376562592. Its totient is φ = 322368240.

The previous prime is 349448717. The next prime is 349448761. The reversal of 349448749 is 947844943.

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 349448749 - 2⁵ = 349448717 is a prime.

It is a super-2 number, since 2×349448749² = 244228856355330002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349448696 and 349448705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349448849) 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 7 ways as a sum of consecutive naturals, for example, 16122 + ... + 30964.

It is an arithmetic number, because the mean of its divisors is an integer number (47070324).

Almost surely, 2^349448749 is an apocalyptic number.

It is an amenable number.

349448749 is a deficient number, since it is larger than the sum of its proper divisors (27113843).

349448749 is a wasteful number, since it uses less digits than its factorization.

349448749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667.

The product of its digits is 3483648, while the sum is 52.

The square root of 349448749 is about 18693.5483255587. The cubic root of 349448749 is about 704.3596949399.

The spelling of 349448749 in words is "three hundred forty-nine million, four hundred forty-eight thousand, seven hundred forty-nine".