349574399 has 2 divisors, whose sum is σ = 349574400. Its totient is φ = 349574398.

The previous prime is 349574359. The next prime is 349574419. The reversal of 349574399 is 993475943.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349574399 is a prime.

It is a super-2 number, since 2×349574399² = 244404520872422402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349574399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349574359) 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 as a sum of consecutive naturals, namely, 174787199 + 174787200.

It is an arithmetic number, because the mean of its divisors is an integer number (174787200).

Almost surely, 2^349574399 is an apocalyptic number.

349574399 is a deficient number, since it is larger than the sum of its proper divisors (1).

349574399 is an equidigital number, since it uses as much as digits as its factorization.

349574399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 53.

The square root of 349574399 is about 18696.9088086774. The cubic root of 349574399 is about 704.4441061642. Note that the first 3 decimals are identical.

The spelling of 349574399 in words is "three hundred forty-nine million, five hundred seventy-four thousand, three hundred ninety-nine".