4394380349 has 4 divisors (see below), whose sum is σ = 4395155520. Its totient is φ = 4393605180.

The previous prime is 4394380321. The next prime is 4394380373. The reversal of 4394380349 is 9430834934.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9430834934 = 2 ⋅4715417467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4394380349 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 (4394380379) 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, 379019 + ... + 390440.

It is an arithmetic number, because the mean of its divisors is an integer number (1098788880).

Almost surely, 2^4394380349 is an apocalyptic number.

It is an amenable number.

4394380349 is a deficient number, since it is larger than the sum of its proper divisors (775171).

4394380349 is an equidigital number, since it uses as much as digits as its factorization.

4394380349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775170.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The square root of 4394380349 is about 66290.1225598505. The cubic root of 4394380349 is about 1637.9446228402.

The spelling of 4394380349 in words is "four billion, three hundred ninety-four million, three hundred eighty thousand, three hundred forty-nine".