1423347349 has 4 divisors (see below), whose sum is σ = 1458063180. Its totient is φ = 1388631520.

The previous prime is 1423347337. The next prime is 1423347377. The reversal of 1423347349 is 9437433241.

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 154206724 + 1269140625 = 12418^2 + 35625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423347349 - 2¹³ = 1423339157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423347379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17357854 + ... + 17357935.

It is an arithmetic number, because the mean of its divisors is an integer number (364515795).

Almost surely, 2^1423347349 is an apocalyptic number.

It is an amenable number.

1423347349 is a deficient number, since it is larger than the sum of its proper divisors (34715831).

1423347349 is an equidigital number, since it uses as much as digits as its factorization.

1423347349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34715830.

The product of its digits is 217728, while the sum is 40.

The square root of 1423347349 is about 37727.2759286965. The cubic root of 1423347349 is about 1124.8733616135.

The spelling of 1423347349 in words is "one billion, four hundred twenty-three million, three hundred forty-seven thousand, three hundred forty-nine".