349425609 has 16 divisors (see below), whose sum is σ = 502301184. Its totient is φ = 214790400.

The previous prime is 349425563. The next prime is 349425617. The reversal of 349425609 is 906524943.

It is not a de Polignac number, because 349425609 - 2¹³ = 349417417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349425649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34129 + ... + 43169.

It is an arithmetic number, because the mean of its divisors is an integer number (31393824).

Almost surely, 2^349425609 is an apocalyptic number.

349425609 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

349425609 is a deficient number, since it is larger than the sum of its proper divisors (152875575).

349425609 is a wasteful number, since it uses less digits than its factorization.

349425609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 349425609 is about 18692.9293851980. The cubic root of 349425609 is about 704.3441473637.

The spelling of 349425609 in words is "three hundred forty-nine million, four hundred twenty-five thousand, six hundred nine".