3384390 has 32 divisors (see below), whose sum is σ = 8344800. Its totient is φ = 877824.

The previous prime is 3384389. The next prime is 3384431. The reversal of 3384390 is 934833.

It is a happy number.

It is a super-2 number, since 2×3384390² = 22908191344200, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415 + ... + 2634.

It is an arithmetic number, because the mean of its divisors is an integer number (260775).

Almost surely, 2^3384390 is an apocalyptic number.

3384390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3384390 is an abundant number, since it is smaller than the sum of its proper divisors (4960410).

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

3384390 is a wasteful number, since it uses less digits than its factorization.

3384390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

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

The square root of 3384390 is about 1839.6711662686. The cubic root of 3384390 is about 150.1389822975.

It can be divided in two parts, 33843 and 90, that added together give a palindrome (33933).

The spelling of 3384390 in words is "three million, three hundred eighty-four thousand, three hundred ninety".