349957826 has 4 divisors (see below), whose sum is σ = 524936742. Its totient is φ = 174978912.

The previous prime is 349957823. The next prime is 349957831. The reversal of 349957826 is 628759943.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 316306225 + 33651601 = 17785^2 + 5801^2 .

It is not an unprimeable number, because it can be changed into a prime (349957823) 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, 87489455 + ... + 87489458.

Almost surely, 2^349957826 is an apocalyptic number.

349957826 is a deficient number, since it is larger than the sum of its proper divisors (174978916).

349957826 is a wasteful number, since it uses less digits than its factorization.

349957826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174978915.

The product of its digits is 3265920, while the sum is 53.

The square root of 349957826 is about 18707.1597523515. The cubic root of 349957826 is about 704.7015660907.

The spelling of 349957826 in words is "three hundred forty-nine million, nine hundred fifty-seven thousand, eight hundred twenty-six".