349480281 has 16 divisors (see below), whose sum is σ = 503758400. Its totient is φ = 214757568.

The previous prime is 349480259. The next prime is 349480303. The reversal of 349480281 is 182084943.

It is an interprime number because it is at equal distance from previous prime (349480259) and next prime (349480303).

It is not a de Polignac number, because 349480281 - 2⁵ = 349480249 is a prime.

It is a super-2 number, since 2×349480281² = 244272933615677922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349480211) 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, 80746 + ... + 84963.

It is an arithmetic number, because the mean of its divisors is an integer number (31484900).

Almost surely, 2^349480281 is an apocalyptic number.

It is an amenable number.

349480281 is a deficient number, since it is larger than the sum of its proper divisors (154278119).

349480281 is a wasteful number, since it uses less digits than its factorization.

349480281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165768.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 349480281 is about 18694.3916991166. The cubic root of 349480281 is about 704.3808799271.

The spelling of 349480281 in words is "three hundred forty-nine million, four hundred eighty thousand, two hundred eighty-one".