2928457449 has 32 divisors (see below), whose sum is σ = 4366172160. Its totient is φ = 1939884624.

The previous prime is 2928457429. The next prime is 2928457487. The reversal of 2928457449 is 9447548292.

It is a happy number.

2928457449 is a `hidden beast` number, since 2 + 9 + 28 + 4 + 574 + 49 = 666.

It is not a de Polignac number, because 2928457449 - 2²⁰ = 2927408873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2928457395 and 2928457404.

It is not an unprimeable number, because it can be changed into a prime (2928457429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5201242 + ... + 5201804.

It is an arithmetic number, because the mean of its divisors is an integer number (136442880).

Almost surely, 2^2928457449 is an apocalyptic number.

It is an amenable number.

2928457449 is a deficient number, since it is larger than the sum of its proper divisors (1437714711).

2928457449 is a wasteful number, since it uses less digits than its factorization.

2928457449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1452 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 2928457449 is about 54115.2238191805. The cubic root of 2928457449 is about 1430.6925181775.

The spelling of 2928457449 in words is "two billion, nine hundred twenty-eight million, four hundred fifty-seven thousand, four hundred forty-nine".