3431430 has 64 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 897120.

The previous prime is 3431411. The next prime is 3431431. The reversal of 3431430 is 341343.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19081 + ... + 19259.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

Almost surely, 2^3431430 is an apocalyptic number.

3431430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3431430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4665600).

3431430 is an abundant number, since it is smaller than the sum of its proper divisors (5899770).

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

3431430 is a wasteful number, since it uses less digits than its factorization.

3431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

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

The square root of 3431430 is about 1852.4119412269. The cubic root of 3431430 is about 150.8313834965.

Adding to 3431430 its reverse (341343), we get a palindrome (3772773).

The spelling of 3431430 in words is "three million, four hundred thirty-one thousand, four hundred thirty".