3834390 has 96 divisors (see below), whose sum is σ = 11439360. Its totient is φ = 803520.

The previous prime is 3834377. The next prime is 3834407. The reversal of 3834390 is 934383.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123675 + ... + 123705.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

Almost surely, 2^3834390 is an apocalyptic number.

3834390 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 3834390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5719680).

3834390 is an abundant number, since it is smaller than the sum of its proper divisors (7604970).

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

3834390 is a wasteful number, since it uses less digits than its factorization.

3834390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3834390 is about 1958.1598504719. The cubic root of 3834390 is about 156.5184101211.

It can be divided in two parts, 3834 and 390, that added together give a palindrome (4224).

The spelling of 3834390 in words is "three million, eight hundred thirty-four thousand, three hundred ninety".