4478420290 has 32 divisors (see below), whose sum is σ = 8131849200. Its totient is φ = 1775714304.

The previous prime is 4478420267. The next prime is 4478420291. The reversal of 4478420290 is 920248744.

It can be written as a sum of positive squares in 8 ways, for example, as 1611781609 + 2866638681 = 40147^2 + 53541^2 .

It is not an unprimeable number, because it can be changed into a prime (4478420291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701754 + ... + 708106.

Almost surely, 2^4478420290 is an apocalyptic number.

4478420290 is a deficient number, since it is larger than the sum of its proper divisors (3653428910).

4478420290 is a wasteful number, since it uses less digits than its factorization.

4478420290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 4478420290 is about 66921.0003661033. Note that the first 3 decimals coincide. The cubic root of 4478420290 is about 1648.3203341801.

The spelling of 4478420290 in words is "four billion, four hundred seventy-eight million, four hundred twenty thousand, two hundred ninety".