1626345349 has 4 divisors (see below), whose sum is σ = 1637116000. Its totient is φ = 1615574700.

The previous prime is 1626345293. The next prime is 1626345389. The reversal of 1626345349 is 9435436261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1626345349 - 2¹³ = 1626337157 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 (1626345389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385099 + ... + 5385400.

It is an arithmetic number, because the mean of its divisors is an integer number (409279000).

Almost surely, 2^1626345349 is an apocalyptic number.

It is an amenable number.

1626345349 is a deficient number, since it is larger than the sum of its proper divisors (10770651).

1626345349 is a wasteful number, since it uses less digits than its factorization.

1626345349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770650.

The product of its digits is 466560, while the sum is 43.

The square root of 1626345349 is about 40327.9722897147. The cubic root of 1626345349 is about 1175.9917021354.

The spelling of 1626345349 in words is "one billion, six hundred twenty-six million, three hundred forty-five thousand, three hundred forty-nine".