3581238 has 16 divisors (see below), whose sum is σ = 7474176. Its totient is φ = 1141800.

The previous prime is 3581219. The next prime is 3581251. The reversal of 3581238 is 8321853.

It is a happy number.

It is a super-2 number, since 2×3581238² = 25650531225288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12838 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (467136).

Almost surely, 2^3581238 is an apocalyptic number.

3581238 is an abundant number, since it is smaller than the sum of its proper divisors (3892938).

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

3581238 is a wasteful number, since it uses less digits than its factorization.

3581238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25979.

The product of its digits is 5760, while the sum is 30.

The square root of 3581238 is about 1892.4159162298. The cubic root of 3581238 is about 152.9951726445.

It can be divided in two parts, 358 and 1238, that added together give a triangular number (1596 = T₅₆).

The spelling of 3581238 in words is "three million, five hundred eighty-one thousand, two hundred thirty-eight".