3445390 has 32 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 1196544.

The previous prime is 3445369. The next prime is 3445391. The reversal of 3445390 is 935443.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3445391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431 + ... + 2989.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

Almost surely, 2^3445390 is an apocalyptic number.

3445390 is an abundant number, since it is smaller than the sum of its proper divisors (3630770).

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

3445390 is a wasteful number, since it uses less digits than its factorization.

3445390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3445390 is about 1856.1761769832. The cubic root of 3445390 is about 151.0356479145.

It can be divided in two parts, 34453 and 90, that added together give a palindrome (34543).

The spelling of 3445390 in words is "three million, four hundred forty-five thousand, three hundred ninety".