349424905 has 8 divisors (see below), whose sum is σ = 420803784. Its totient is φ = 278544000.

The previous prime is 349424903. The next prime is 349424927. The reversal of 349424905 is 509424943.

It can be written as a sum of positive squares in 4 ways, for example, as 76877824 + 272547081 = 8768^2 + 16509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349424905 - 2¹ = 349424903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349424903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122946 + ... + 125755.

It is an arithmetic number, because the mean of its divisors is an integer number (52600473).

Almost surely, 2^349424905 is an apocalyptic number.

It is an amenable number.

349424905 is a deficient number, since it is larger than the sum of its proper divisors (71378879).

349424905 is a wasteful number, since it uses less digits than its factorization.

349424905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248987.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 349424905 is about 18692.9105545391. The cubic root of 349424905 is about 704.3436743411.

The spelling of 349424905 in words is "three hundred forty-nine million, four hundred twenty-four thousand, nine hundred five".