3405390 has 16 divisors (see below), whose sum is σ = 8173008. Its totient is φ = 908096.

The previous prime is 3405371. The next prime is 3405397. The reversal of 3405390 is 935043.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3405390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56727 + ... + 56786.

It is an arithmetic number, because the mean of its divisors is an integer number (510813).

Almost surely, 2^3405390 is an apocalyptic number.

3405390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3405390 is an abundant number, since it is smaller than the sum of its proper divisors (4767618).

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

3405390 is a wasteful number, since it uses less digits than its factorization.

3405390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113523.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 3405390 is about 1845.3698816227. The cubic root of 3405390 is about 150.4488776083.

It can be divided in two parts, 34053 and 90, that added together give a palindrome (34143).

The spelling of 3405390 in words is "three million, four hundred five thousand, three hundred ninety".