3155438 has 48 divisors (see below), whose sum is σ = 6032880. Its totient is φ = 1224960.

The previous prime is 3155437. The next prime is 3155473. The reversal of 3155438 is 8345513.

3155438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3155438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155437) 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 23 ways as a sum of consecutive naturals, for example, 53453 + ... + 53511.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

Almost surely, 2^3155438 is an apocalyptic number.

3155438 is a deficient number, since it is larger than the sum of its proper divisors (2877442).

3155438 is a wasteful number, since it uses less digits than its factorization.

3155438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 102 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 3155438 is about 1776.3552572613. The cubic root of 3155438 is about 146.6740274084.

The spelling of 3155438 in words is "three million, one hundred fifty-five thousand, four hundred thirty-eight".