349275481 has 4 divisors (see below), whose sum is σ = 360542464. Its totient is φ = 338008500.

The previous prime is 349275431. The next prime is 349275491. The reversal of 349275481 is 184572943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 349275481 - 2⁹ = 349274969 is a prime.

It is a super-2 number, since 2×349275481² = 243986723255562722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349275431) 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 3 ways as a sum of consecutive naturals, for example, 5633445 + ... + 5633506.

It is an arithmetic number, because the mean of its divisors is an integer number (90135616).

Almost surely, 2^349275481 is an apocalyptic number.

349275481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

349275481 is a deficient number, since it is larger than the sum of its proper divisors (11266983).

349275481 is a wasteful number, since it uses less digits than its factorization.

349275481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266982.

The product of its digits is 241920, while the sum is 43.

The square root of 349275481 is about 18688.9133177935. The cubic root of 349275481 is about 704.2432609158.

The spelling of 349275481 in words is "three hundred forty-nine million, two hundred seventy-five thousand, four hundred eighty-one".