4395449072 has 40 divisors (see below), whose sum is σ = 9736719072. Its totient is φ = 1883001600.

The previous prime is 4395449029. The next prime is 4395449099. The reversal of 4395449072 is 2709445934.

It is a super-2 number, since 2×4395449072² = 38639945089091322368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336422 + ... + 349242.

Almost surely, 2^4395449072 is an apocalyptic number.

It is an amenable number.

4395449072 is an abundant number, since it is smaller than the sum of its proper divisors (5341270000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4395449072 is a wasteful number, since it uses less digits than its factorization.

4395449072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897 (or 15891 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 4395449072 is about 66298.1830218597. The cubic root of 4395449072 is about 1638.0773959930.

The spelling of 4395449072 in words is "four billion, three hundred ninety-five million, four hundred forty-nine thousand, seventy-two".