349885551 has 32 divisors (see below), whose sum is σ = 537926400. Its totient is φ = 200793600.

The previous prime is 349885537. The next prime is 349885559. The reversal of 349885551 is 155588943.

It is a happy number.

It is not a de Polignac number, because 349885551 - 2¹¹ = 349883503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349885551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349885559) 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 31 ways as a sum of consecutive naturals, for example, 21876 + ... + 34326.

It is an arithmetic number, because the mean of its divisors is an integer number (16810200).

Almost surely, 2^349885551 is an apocalyptic number.

349885551 is a deficient number, since it is larger than the sum of its proper divisors (188040849).

349885551 is a wasteful number, since it uses less digits than its factorization.

349885551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12519.

The product of its digits is 864000, while the sum is 48.

The square root of 349885551 is about 18705.2279055883. The cubic root of 349885551 is about 704.6530499472.

The spelling of 349885551 in words is "three hundred forty-nine million, eight hundred eighty-five thousand, five hundred fifty-one".