349887279 has 16 divisors (see below), whose sum is σ = 533751552. Its totient is φ = 199714368.

The previous prime is 349887271. The next prime is 349887283. The reversal of 349887279 is 972788943.

It is not a de Polignac number, because 349887279 - 2³ = 349887271 is a prime.

It is a super-2 number, since 2×349887279² = 244842216012047682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349887271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11272 + ... + 28754.

It is an arithmetic number, because the mean of its divisors is an integer number (33359472).

Almost surely, 2^349887279 is an apocalyptic number.

349887279 is a deficient number, since it is larger than the sum of its proper divisors (183864273).

349887279 is a wasteful number, since it uses less digits than its factorization.

349887279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18446.

The product of its digits is 6096384, while the sum is 57.

The square root of 349887279 is about 18705.2740958266. The cubic root of 349887279 is about 704.6542099822.

The spelling of 349887279 in words is "three hundred forty-nine million, eight hundred eighty-seven thousand, two hundred seventy-nine".