349448357 has 2 divisors, whose sum is σ = 349448358. Its totient is φ = 349448356.

The previous prime is 349448339. The next prime is 349448369. The reversal of 349448357 is 753844943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342657121 + 6791236 = 18511^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 349448357 - 2⁶ = 349448293 is a prime.

It is a super-2 number, since 2×349448357² = 244228308419998898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349448317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174724178 + 174724179.

It is an arithmetic number, because the mean of its divisors is an integer number (174724179).

Almost surely, 2^349448357 is an apocalyptic number.

It is an amenable number.

349448357 is a deficient number, since it is larger than the sum of its proper divisors (1).

349448357 is an equidigital number, since it uses as much as digits as its factorization.

349448357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The square root of 349448357 is about 18693.5378406550. The cubic root of 349448357 is about 704.3594315640.

The spelling of 349448357 in words is "three hundred forty-nine million, four hundred forty-eight thousand, three hundred fifty-seven".