478492 has 24 divisors (see below), whose sum is σ = 999936. Its totient is φ = 195888.

The previous prime is 478483. The next prime is 478493. The reversal of 478492 is 294874.

It is a happy number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478493) by changing a digit.

478492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273 + ... + 1015.

It is an arithmetic number, because the mean of its divisors is an integer number (41664).

2⁴⁷⁸⁴⁹² 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 478492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499968).

478492 is an abundant number, since it is smaller than the sum of its proper divisors (521444).

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

478492 is a wasteful number, since it uses less digits than its factorization.

478492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 775 counting only the distinct ones).

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

The square root of 478492 is about 691.7311616517. The cubic root of 478492 is about 78.2152720787.

The spelling of 478492 in words is "four hundred seventy-eight thousand, four hundred ninety-two".