478011138 has 16 divisors (see below), whose sum is σ = 1042933536. Its totient is φ = 144851840.

The previous prime is 478011137. The next prime is 478011173. The reversal of 478011138 is 831110874.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 478011099 and 478011108.

It is not an unprimeable number, because it can be changed into a prime (478011133) 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 7 ways as a sum of consecutive naturals, for example, 3621231 + ... + 3621362.

It is an arithmetic number, because the mean of its divisors is an integer number (65183346).

Almost surely, 2^478011138 is an apocalyptic number.

478011138 is an abundant number, since it is smaller than the sum of its proper divisors (564922398).

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

478011138 is a wasteful number, since it uses less digits than its factorization.

478011138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242609.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 478011138 is about 21863.4658277227. The cubic root of 478011138 is about 781.8906240452.

The spelling of 478011138 in words is "four hundred seventy-eight million, eleven thousand, one hundred thirty-eight".