1828631 has 12 divisors (see below), whose sum is σ = 2162808. Its totient is φ = 1541232.

The previous prime is 1828627. The next prime is 1828633. The reversal of 1828631 is 1368281.

It is not a de Polignac number, because 1828631 - 2² = 1828627 is a prime.

It is a super-2 number, since 2×1828631² = 6687782668322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1828594 and 1828603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3005 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (180234).

2^1828631 is an apocalyptic number.

1828631 is a deficient number, since it is larger than the sum of its proper divisors (334177).

1828631 is an equidigital number, since it uses as much as digits as its factorization.

1828631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 631 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1828631 is about 1352.2688342190. The cubic root of 1828631 is about 122.2856114096.

The spelling of 1828631 in words is "one million, eight hundred twenty-eight thousand, six hundred thirty-one".