478942 has 8 divisors (see below), whose sum is σ = 725832. Its totient is φ = 237000.

The previous prime is 478937. The next prime is 478943. The reversal of 478942 is 249874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 478898 and 478907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (90729).

2⁴⁷⁸⁹⁴² is an apocalyptic number.

478942 is a deficient number, since it is larger than the sum of its proper divisors (246890).

478942 is a wasteful number, since it uses less digits than its factorization.

478942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its digits is 16128, while the sum is 34.

The square root of 478942 is about 692.0563560867. The cubic root of 478942 is about 78.2397837003.

The spelling of 478942 in words is "four hundred seventy-eight thousand, nine hundred forty-two".