3431340 has 72 divisors (see below), whose sum is σ = 11361168. Its totient is φ = 831360.

The previous prime is 3431333. The next prime is 3431353. The reversal of 3431340 is 431343.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1114 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (157794).

Almost surely, 2^3431340 is an apocalyptic number.

3431340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3431340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5680584).

3431340 is an abundant number, since it is smaller than the sum of its proper divisors (7929828).

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

3431340 is a wasteful number, since it uses less digits than its factorization.

3431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3431340 is about 1852.3876484149. The cubic root of 3431340 is about 150.8300648098.

Adding to 3431340 its reverse (431343), we get a palindrome (3862683).

The spelling of 3431340 in words is "three million, four hundred thirty-one thousand, three hundred forty".