349040887 has 16 divisors (see below), whose sum is σ = 397048960. Its totient is φ = 304173792.

The previous prime is 349040863. The next prime is 349040921. The reversal of 349040887 is 788040943.

It is not a de Polignac number, because 349040887 - 2¹¹ = 349038839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349040287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73528 + ... + 78130.

It is an arithmetic number, because the mean of its divisors is an integer number (24815560).

Almost surely, 2^349040887 is an apocalyptic number.

349040887 is a deficient number, since it is larger than the sum of its proper divisors (48008073).

349040887 is a wasteful number, since it uses less digits than its factorization.

349040887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 349040887 is about 18682.6359756861. The cubic root of 349040887 is about 704.0855551746.

The spelling of 349040887 in words is "three hundred forty-nine million, forty thousand, eight hundred eighty-seven".