349923449 has 6 divisors (see below), whose sum is σ = 365799546. Its totient is φ = 334708880.

The previous prime is 349923421. The next prime is 349923473. The reversal of 349923449 is 944329943.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 342805225 + 7118224 = 18515^2 + 2668^2 .

It is not a de Polignac number, because 349923449 - 2²⁸ = 81487993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349923419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330212 + ... + 331269.

It is an arithmetic number, because the mean of its divisors is an integer number (60966591).

Almost surely, 2^349923449 is an apocalyptic number.

It is an amenable number.

349923449 is a deficient number, since it is larger than the sum of its proper divisors (15876097).

349923449 is an equidigital number, since it uses as much as digits as its factorization.

349923449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661527 (or 661504 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The square root of 349923449 is about 18706.2409104555. The cubic root of 349923449 is about 704.6784906254.

The spelling of 349923449 in words is "three hundred forty-nine million, nine hundred twenty-three thousand, four hundred forty-nine".