4478420292 has 12 divisors (see below), whose sum is σ = 10449647376. Its totient is φ = 1492806760.

The previous prime is 4478420291. The next prime is 4478420369. The reversal of 4478420292 is 2920248744.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 186600834 + ... + 186600857.

It is an arithmetic number, because the mean of its divisors is an integer number (870803948).

Almost surely, 2^4478420292 is an apocalyptic number.

It is an amenable number.

4478420292 is an abundant number, since it is smaller than the sum of its proper divisors (5971227084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4478420292 is a wasteful number, since it uses less digits than its factorization.

4478420292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373201698 (or 373201696 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 4478420292 is about 66921.0003810463. Note that the first 3 decimals coincide. The cubic root of 4478420292 is about 1648.3203344255.

The spelling of 4478420292 in words is "four billion, four hundred seventy-eight million, four hundred twenty thousand, two hundred ninety-two".