478149888 has 144 divisors (see below), whose sum is σ = 1374843456. Its totient is φ = 146964480.

The previous prime is 478149887. The next prime is 478149907. The reversal of 478149888 is 888941874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478149887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691623 + ... + 692313.

It is an arithmetic number, because the mean of its divisors is an integer number (9547524).

Almost surely, 2^478149888 is an apocalyptic number.

478149888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478149888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687421728).

478149888 is an abundant number, since it is smaller than the sum of its proper divisors (896693568).

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

478149888 is a wasteful number, since it uses less digits than its factorization.

478149888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 766 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 57.

The square root of 478149888 is about 21866.6386991691. The cubic root of 478149888 is about 781.9662686069.

The spelling of 478149888 in words is "four hundred seventy-eight million, one hundred forty-nine thousand, eight hundred eighty-eight".