4478132146 has 16 divisors (see below), whose sum is σ = 7113619800. Its totient is φ = 2106973440.

The previous prime is 4478132123. The next prime is 4478132147. The reversal of 4478132146 is 6412318744.

It can be written as a sum of positive squares in 4 ways, for example, as 2551361121 + 1926771025 = 50511^2 + 43895^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4478132099 and 4478132108.

It is not an unprimeable number, because it can be changed into a prime (4478132147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284080 + ... + 299428.

Almost surely, 2^4478132146 is an apocalyptic number.

4478132146 is a deficient number, since it is larger than the sum of its proper divisors (2635487654).

4478132146 is a wasteful number, since it uses less digits than its factorization.

4478132146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23949.

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

The square root of 4478132146 is about 66918.8474646717. The cubic root of 4478132146 is about 1648.2849821460.

The spelling of 4478132146 in words is "four billion, four hundred seventy-eight million, one hundred thirty-two thousand, one hundred forty-six".