4398778404 has 18 divisors (see below), whose sum is σ = 11119134390. Its totient is φ = 1466259456.

The previous prime is 4398778379. The next prime is 4398778409. The reversal of 4398778404 is 4048778934.

It can be written as a sum of positive squares in only one way, i.e., 2874032100 + 1524746304 = 53610^2 + 39048^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (4398778409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61094109 + ... + 61094180.

Almost surely, 2^4398778404 is an apocalyptic number.

It is an amenable number.

4398778404 is an abundant number, since it is smaller than the sum of its proper divisors (6720355986).

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

4398778404 is a wasteful number, since it uses less digits than its factorization.

4398778404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122188299 (or 122188294 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The square root of 4398778404 is about 66323.2870415814. The cubic root of 4398778404 is about 1638.4908787425.

The spelling of 4398778404 in words is "four billion, three hundred ninety-eight million, seven hundred seventy-eight thousand, four hundred four".