3965490 has 64 divisors (see below), whose sum is σ = 11145600. Its totient is φ = 1000512.

The previous prime is 3965483. The next prime is 3965537. The reversal of 3965490 is 945693.

It is a super-2 number, since 2×3965490² = 31450221880200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4744 + ... + 5516.

It is an arithmetic number, because the mean of its divisors is an integer number (174150).

Almost surely, 2^3965490 is an apocalyptic number.

3965490 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 3965490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5572800).

3965490 is an abundant number, since it is smaller than the sum of its proper divisors (7180110).

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

3965490 is a wasteful number, since it uses less digits than its factorization.

3965490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3965490 is about 1991.3538108533. The cubic root of 3965490 is about 158.2822759351.

It can be divided in two parts, 396 and 5490, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 3965490 in words is "three million, nine hundred sixty-five thousand, four hundred ninety".