4394442949 has 24 divisors (see below), whose sum is σ = 5035076640. Its totient is φ = 3822856128.

The previous prime is 4394442929. The next prime is 4394442959. The reversal of 4394442949 is 9492444934.

It is not a de Polignac number, because 4394442949 - 2¹⁷ = 4394311877 is a prime.

It is a super-2 number, since 2×4394442949² = 38622257664031633202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4394442896 and 4394442905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394442929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629094 + ... + 636040.

It is an arithmetic number, because the mean of its divisors is an integer number (209794860).

Almost surely, 2^4394442949 is an apocalyptic number.

It is an amenable number.

4394442949 is a deficient number, since it is larger than the sum of its proper divisors (640633691).

4394442949 is a wasteful number, since it uses less digits than its factorization.

4394442949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189 (or 7176 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 52.

The square root of 4394442949 is about 66290.5947250438. The cubic root of 4394442949 is about 1637.9524005652.

The spelling of 4394442949 in words is "four billion, three hundred ninety-four million, four hundred forty-two thousand, nine hundred forty-nine".