1481638 has 8 divisors (see below), whose sum is σ = 2255832. Its totient is φ = 729696.

The previous prime is 1481611. The next prime is 1481663. The reversal of 1481638 is 8361841.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5395 + ... + 5662.

It is an arithmetic number, because the mean of its divisors is an integer number (281979).

2^1481638 is an apocalyptic number.

1481638 is a deficient number, since it is larger than the sum of its proper divisors (774194).

1481638 is a wasteful number, since it uses less digits than its factorization.

1481638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126.

The product of its digits is 4608, while the sum is 31.

The square root of 1481638 is about 1217.2255337447. The cubic root of 1481638 is about 114.0024109473.

The spelling of 1481638 in words is "one million, four hundred eighty-one thousand, six hundred thirty-eight".