4978449 has 48 divisors (see below), whose sum is σ = 8864640. Its totient is φ = 2751840.

The previous prime is 4978447. The next prime is 4978451. The reversal of 4978449 is 9448794.

It is an interprime number because it is at equal distance from previous prime (4978447) and next prime (4978451).

It is not a de Polignac number, because 4978449 - 2¹ = 4978447 is a prime.

4978449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4978447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70084 + ... + 70154.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

Almost surely, 2^4978449 is an apocalyptic number.

4978449 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4978449 is a deficient number, since it is larger than the sum of its proper divisors (3886191).

4978449 is a wasteful number, since it uses less digits than its factorization.

4978449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 134 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 4978449 is about 2231.2438235209. The cubic root of 4978449 is about 170.7515629021.

The spelling of 4978449 in words is "four million, nine hundred seventy-eight thousand, four hundred forty-nine".