478822049 has 2 divisors, whose sum is σ = 478822050. Its totient is φ = 478822048.

The previous prime is 478822037. The next prime is 478822147. The reversal of 478822049 is 940228874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275560000 + 203262049 = 16600^2 + 14257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478822049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478822009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239411024 + 239411025.

It is an arithmetic number, because the mean of its divisors is an integer number (239411025).

Almost surely, 2^478822049 is an apocalyptic number.

It is an amenable number.

478822049 is a deficient number, since it is larger than the sum of its proper divisors (1).

478822049 is an equidigital number, since it uses as much as digits as its factorization.

478822049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 478822049 is about 21882.0028562287. The cubic root of 478822049 is about 782.3325143826.

The spelling of 478822049 in words is "four hundred seventy-eight million, eight hundred twenty-two thousand, forty-nine".