349863619 has 16 divisors (see below), whose sum is σ = 410348736. Its totient is φ = 292032000.

The previous prime is 349863611. The next prime is 349863641. The reversal of 349863619 is 916368943.

349863619 = 157² + 158² + ... + 1017².

It is a cyclic number.

It is not a de Polignac number, because 349863619 - 2³ = 349863611 is a prime.

It is a super-2 number, since 2×349863619² = 244809103799554322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349863611) 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, 268269 + ... + 269569.

It is an arithmetic number, because the mean of its divisors is an integer number (25646796).

Almost surely, 2^349863619 is an apocalyptic number.

349863619 is a deficient number, since it is larger than the sum of its proper divisors (60485117).

349863619 is a wasteful number, since it uses less digits than its factorization.

349863619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286.

The product of its digits is 839808, while the sum is 49.

The square root of 349863619 is about 18704.6416431858. The cubic root of 349863619 is about 704.6383263006.

The spelling of 349863619 in words is "three hundred forty-nine million, eight hundred sixty-three thousand, six hundred nineteen".