9049447394 has 16 divisors (see below), whose sum is σ = 14704844280. Its totient is φ = 4176666000.

The previous prime is 9049447373. The next prime is 9049447397. The reversal of 9049447394 is 4937449409.

It is a happy number.

9049447394 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 210627169 + 8838820225 = 14513^2 + 94015^2 .

It is not an unprimeable number, because it can be changed into a prime (9049447397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025357 + ... + 1034144.

Almost surely, 2^9049447394 is an apocalyptic number.

9049447394 is a deficient number, since it is larger than the sum of its proper divisors (5655396886).

9049447394 is a wasteful number, since it uses less digits than its factorization.

9049447394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059542 (or 2059516 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 9049447394 is about 95128.5834752100. The cubic root of 9049447394 is about 2083.8863019634.

The spelling of 9049447394 in words is "nine billion, forty-nine million, four hundred forty-seven thousand, three hundred ninety-four".