477438 has 16 divisors (see below), whose sum is σ = 1028496. Its totient is φ = 146880.

The previous prime is 477409. The next prime is 477439. The reversal of 477438 is 834774.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 477399 and 477408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 477438.

It is not an unprimeable number, because it can be changed into a prime (477439) 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, 2983 + ... + 3138.

It is an arithmetic number, because the mean of its divisors is an integer number (64281).

2⁴⁷⁷⁴³⁸ is an apocalyptic number.

477438 is an abundant number, since it is smaller than the sum of its proper divisors (551058).

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

477438 is a wasteful number, since it uses less digits than its factorization.

477438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139.

The product of its digits is 18816, while the sum is 33.

The square root of 477438 is about 690.9688849724. The cubic root of 477438 is about 78.1578002005.

The spelling of 477438 in words is "four hundred seventy-seven thousand, four hundred thirty-eight".