349989549 has 32 divisors (see below), whose sum is σ = 589881600. Its totient is φ = 179615232.

The previous prime is 349989499. The next prime is 349989559. The reversal of 349989549 is 945989943.

It is not a de Polignac number, because 349989549 - 2⁸ = 349989293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 349989492 and 349989501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349989559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7224 + ... + 27425.

It is an arithmetic number, because the mean of its divisors is an integer number (18433800).

Almost surely, 2^349989549 is an apocalyptic number.

349989549 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

349989549 is a deficient number, since it is larger than the sum of its proper divisors (239892051).

349989549 is a wasteful number, since it uses less digits than its factorization.

349989549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34709.

The product of its digits is 12597120, while the sum is 60.

The square root of 349989549 is about 18708.0076170607. The cubic root of 349989549 is about 704.7228587253.

The spelling of 349989549 in words is "three hundred forty-nine million, nine hundred eighty-nine thousand, five hundred forty-nine".