3450440 has 32 divisors (see below), whose sum is σ = 8873280. Its totient is φ = 1182912.

The previous prime is 3450431. The next prime is 3450467. The reversal of 3450440 is 440543.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5882 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (277290).

Almost surely, 2^3450440 is an apocalyptic number.

It is an amenable number.

3450440 is an abundant number, since it is smaller than the sum of its proper divisors (5422840).

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

3450440 is a wasteful number, since it uses less digits than its factorization.

3450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12341 (or 12337 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3450440 is about 1857.5360023429. The cubic root of 3450440 is about 151.1094042163.

Adding to 3450440 its reverse (440543), we get a palindrome (3890983).

The spelling of 3450440 in words is "three million, four hundred fifty thousand, four hundred forty".