478436 has 18 divisors (see below), whose sum is σ = 974358. Its totient is φ = 204960.

The previous prime is 478433. The next prime is 478441. The reversal of 478436 is 634874.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 164836 = 560^2 + 406^2 .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (478433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (54131).

2⁴⁷⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

478436 is an abundant number, since it is smaller than the sum of its proper divisors (495922).

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

478436 is a wasteful number, since it uses less digits than its factorization.

478436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2450 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 478436 is about 691.6906823140. The cubic root of 478436 is about 78.2122206685.

The spelling of 478436 in words is "four hundred seventy-eight thousand, four hundred thirty-six".