3431538 has 64 divisors (see below), whose sum is σ = 8553600. Its totient is φ = 1010880.

The previous prime is 3431537. The next prime is 3431551. The reversal of 3431538 is 8351343.

It is a happy number.

3431538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31428 + ... + 31536.

It is an arithmetic number, because the mean of its divisors is an integer number (133650).

Almost surely, 2^3431538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3431538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4276800).

3431538 is an abundant number, since it is smaller than the sum of its proper divisors (5122062).

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

3431538 is a wasteful number, since it uses less digits than its factorization.

3431538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 178 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 3431538 is about 1852.4410921808. The cubic root of 3431538 is about 150.8329658901.

It can be divided in two parts, 3431 and 538, that added together give a square (3969 = 63²).

The spelling of 3431538 in words is "three million, four hundred thirty-one thousand, five hundred thirty-eight".