3531438 has 20 divisors (see below), whose sum is σ = 7913400. Its totient is φ = 1177092.

The previous prime is 3531433. The next prime is 3531467. The reversal of 3531438 is 8341353.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10738 + ... + 11061.

It is an arithmetic number, because the mean of its divisors is an integer number (395670).

Almost surely, 2^3531438 is an apocalyptic number.

3531438 is an abundant number, since it is smaller than the sum of its proper divisors (4381962).

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

3531438 is a wasteful number, since it uses less digits than its factorization.

3531438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21813 (or 21804 counting only the distinct ones).

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

The square root of 3531438 is about 1879.2120689268. The cubic root of 3531438 is about 152.2826860832.

It can be divided in two parts, 3531 and 438, that added together give a square (3969 = 63²).

The spelling of 3531438 in words is "three million, five hundred thirty-one thousand, four hundred thirty-eight".