1241638 has 8 divisors (see below), whose sum is σ = 1871280. Its totient is φ = 617880.

The previous prime is 1241627. The next prime is 1241651. The reversal of 1241638 is 8361421.

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, 898 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (233910).

2^1241638 is an apocalyptic number.

1241638 is a deficient number, since it is larger than the sum of its proper divisors (629642).

1241638 is a wasteful number, since it uses less digits than its factorization.

1241638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942.

The product of its digits is 1152, while the sum is 25.

The square root of 1241638 is about 1114.2881135505. The cubic root of 1241638 is about 107.4809917717.

The spelling of 1241638 in words is "one million, two hundred forty-one thousand, six hundred thirty-eight".