478742 has 16 divisors (see below), whose sum is σ = 801792. Its totient is φ = 212520.

The previous prime is 478741. The next prime is 478747. The reversal of 478742 is 247874.

It is a junction number, because it is equal to n+sod(n) for n = 478699 and 478708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (50112).

2⁴⁷⁸⁷⁴² is an apocalyptic number.

478742 is a deficient number, since it is larger than the sum of its proper divisors (323050).

478742 is a wasteful number, since it uses less digits than its factorization.

478742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its digits is 12544, while the sum is 32.

The square root of 478742 is about 691.9118440958. The cubic root of 478742 is about 78.2288915426.

The spelling of 478742 in words is "four hundred seventy-eight thousand, seven hundred forty-two".