426309349 has 4 divisors (see below), whose sum is σ = 436707180. Its totient is φ = 415911520.

The previous prime is 426309343. The next prime is 426309383. The reversal of 426309349 is 943903624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 164096100 + 262213249 = 12810^2 + 16193^2 .

It is a cyclic number.

It is not a de Polignac number, because 426309349 - 2²¹ = 424212197 is a prime.

It is a super-2 number, since 2×426309349² = 363479322089607602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426309343) 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 in 3 ways as a sum of consecutive naturals, for example, 5198854 + ... + 5198935.

It is an arithmetic number, because the mean of its divisors is an integer number (109176795).

Almost surely, 2^426309349 is an apocalyptic number.

It is an amenable number.

426309349 is a deficient number, since it is larger than the sum of its proper divisors (10397831).

426309349 is a wasteful number, since it uses less digits than its factorization.

426309349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397830.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 426309349 is about 20647.2600845730. The cubic root of 426309349 is about 752.6186089129.

The spelling of 426309349 in words is "four hundred twenty-six million, three hundred nine thousand, three hundred forty-nine".