1146890449 has 4 divisors (see below), whose sum is σ = 1157040036. Its totient is φ = 1136740864.

The previous prime is 1146890441. The next prime is 1146890501. The reversal of 1146890449 is 9440986411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 482900625 + 663989824 = 21975^2 + 25768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146890449 - 2³ = 1146890441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1146890399 and 1146890408.

It is not an unprimeable number, because it can be changed into a prime (1146890441) 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, 5074624 + ... + 5074849.

It is an arithmetic number, because the mean of its divisors is an integer number (289260009).

Almost surely, 2^1146890449 is an apocalyptic number.

It is an amenable number.

1146890449 is a deficient number, since it is larger than the sum of its proper divisors (10149587).

1146890449 is a wasteful number, since it uses less digits than its factorization.

1146890449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10149586.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1146890449 is about 33865.7710527902. The cubic root of 1146890449 is about 1046.7443981357.

The spelling of 1146890449 in words is "one billion, one hundred forty-six million, eight hundred ninety thousand, four hundred forty-nine".