662438 has 8 divisors (see below), whose sum is σ = 1135632. Its totient is φ = 283896.

The previous prime is 662407. The next prime is 662443. The reversal of 662438 is 834266.

662438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 662438.

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 662438.

It is an unprimeable number.

662438 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 3 ways as a sum of consecutive naturals, for example, 23645 + ... + 23672.

It is an arithmetic number, because the mean of its divisors is an integer number (141954).

2⁶⁶²⁴³⁸ is an apocalyptic number.

662438 is a deficient number, since it is larger than the sum of its proper divisors (473194).

662438 is a wasteful number, since it uses less digits than its factorization.

662438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47326.

The product of its digits is 6912, while the sum is 29.

The square root of 662438 is about 813.9029426166. The cubic root of 662438 is about 87.1729505361.

The spelling of 662438 in words is "six hundred sixty-two thousand, four hundred thirty-eight".