349943553 has 6 divisors (see below), whose sum is σ = 505474034. Its totient is φ = 233295696.

The previous prime is 349943549. The next prime is 349943563. The reversal of 349943553 is 355349943.

349943553 is a `hidden beast` number, since 3 + 4 + 9 + 94 + 3 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 184769649 + 165173904 = 13593^2 + 12852^2 .

It is not a de Polignac number, because 349943553 - 2² = 349943549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349943499 and 349943508.

It is not an unprimeable number, because it can be changed into a prime (349943533) 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, 19441300 + ... + 19441317.

Almost surely, 2^349943553 is an apocalyptic number.

It is an amenable number.

349943553 is a deficient number, since it is larger than the sum of its proper divisors (155530481).

349943553 is a wasteful number, since it uses less digits than its factorization.

349943553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38882623 (or 38882620 counting only the distinct ones).

The product of its digits is 874800, while the sum is 45.

The square root of 349943553 is about 18706.7782635065. The cubic root of 349943553 is about 704.6919855628.

The spelling of 349943553 in words is "three hundred forty-nine million, nine hundred forty-three thousand, five hundred fifty-three".