478169748 has 144 divisors (see below), whose sum is σ = 1454544000. Its totient is φ = 129556224.

The previous prime is 478169729. The next prime is 478169749. The reversal of 478169748 is 847961874.

It is a happy number.

478169748 is a `hidden beast` number, since 478 + 169 + 7 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 478169694 and 478169703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478169749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 430618 + ... + 431726.

It is an arithmetic number, because the mean of its divisors is an integer number (10101000).

Almost surely, 2^478169748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478169748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727272000).

478169748 is an abundant number, since it is smaller than the sum of its proper divisors (976374252).

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

478169748 is a wasteful number, since it uses less digits than its factorization.

478169748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1209 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 478169748 is about 21867.0928108882. The cubic root of 478169748 is about 781.9770948042.

It can be divided in two parts, 4781 and 69748, that added together give a square (74529 = 273²).

The spelling of 478169748 in words is "four hundred seventy-eight million, one hundred sixty-nine thousand, seven hundred forty-eight".