349143915 has 16 divisors (see below), whose sum is σ = 559188000. Its totient is φ = 186024192.

The previous prime is 349143863. The next prime is 349143923. The reversal of 349143915 is 519341943.

It is a happy number.

It is not a de Polignac number, because 349143915 - 2¹¹ = 349141867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4641 + ... + 26829.

It is an arithmetic number, because the mean of its divisors is an integer number (34949250).

Almost surely, 2^349143915 is an apocalyptic number.

349143915 is a deficient number, since it is larger than the sum of its proper divisors (210044085).

349143915 is a wasteful number, since it uses less digits than its factorization.

349143915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23246.

The product of its digits is 58320, while the sum is 39.

The square root of 349143915 is about 18685.3930919315. The cubic root of 349143915 is about 704.1548244141.

The spelling of 349143915 in words is "three hundred forty-nine million, one hundred forty-three thousand, nine hundred fifteen".