3822990 has 48 divisors (see below), whose sum is σ = 9710928. Its totient is φ = 963072.

The previous prime is 3822967. The next prime is 3823007. The reversal of 3822990 is 992283.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10654 + ... + 11006.

It is an arithmetic number, because the mean of its divisors is an integer number (202311).

Almost surely, 2^3822990 is an apocalyptic number.

3822990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3822990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4855464).

3822990 is an abundant number, since it is smaller than the sum of its proper divisors (5887938).

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

3822990 is a wasteful number, since it uses less digits than its factorization.

3822990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3822990 is about 1955.2467874926. The cubic root of 3822990 is about 156.3631415205.

Multiplying 3822990 by its sum of digits (33), we get a triangular number (126158670 = T₁₅₈₈₄).

The spelling of 3822990 in words is "three million, eight hundred twenty-two thousand, nine hundred ninety".