3831000 has 64 divisors (see below), whose sum is σ = 11962080. Its totient is φ = 1020800.

The previous prime is 3830977. The next prime is 3831007. The reversal of 3831000 is 1383.

It is a super-2 number, since 2×3831000² = 29353122000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362 + ... + 3638.

Almost surely, 2^3831000 is an apocalyptic number.

3831000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3831000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5981040).

3831000 is an abundant number, since it is smaller than the sum of its proper divisors (8131080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3831000 is a wasteful number, since it uses less digits than its factorization.

3831000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3831000 is about 1957.2940504687. The cubic root of 3831000 is about 156.4722703305.

Adding to 3831000 its reverse (1383), we get a palindrome (3832383).

The spelling of 3831000 in words is "three million, eight hundred thirty-one thousand".