3880890 has 96 divisors (see below), whose sum is σ = 11321856. Its totient is φ = 915840.

The previous prime is 3880889. The next prime is 3880897. The reversal of 3880890 is 980883.

It is a super-2 number, since 2×3880890² = 30122614384200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3880897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36217 + ... + 36323.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

Almost surely, 2^3880890 is an apocalyptic number.

3880890 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 3880890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5660928).

3880890 is an abundant number, since it is smaller than the sum of its proper divisors (7440966).

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

3880890 is a wasteful number, since it uses less digits than its factorization.

3880890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 3880890 is about 1969.9974619273. The cubic root of 3880890 is about 157.1485739754.

The spelling of 3880890 in words is "three million, eight hundred eighty thousand, eight hundred ninety".