1631441 has 8 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 1360368.

The previous prime is 1631407. The next prime is 1631447. The reversal of 1631441 is 1441361.

1631441 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 1631441 - 2¹⁸ = 1369297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1631447) 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, 2891 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (239400).

2^1631441 is an apocalyptic number.

It is an amenable number.

1631441 is a deficient number, since it is larger than the sum of its proper divisors (283759).

1631441 is an equidigital number, since it uses as much as digits as its factorization.

1631441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343.

The product of its digits is 288, while the sum is 20.

The square root of 1631441 is about 1277.2787479638. The cubic root of 1631441 is about 117.7218623932.

The spelling of 1631441 in words is "one million, six hundred thirty-one thousand, four hundred forty-one".