4031442 has 12 divisors (see below), whose sum is σ = 8734830. Its totient is φ = 1343808.

The previous prime is 4031441. The next prime is 4031453. The reversal of 4031442 is 2441304.

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 1279161 = 1659^2 + 1131^2 .

It is a super-3 number, since 3×4031442³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 223969 = 4031442 / (4 + 0 + 3 + 1 + 4 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (4031441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111967 + ... + 112002.

Almost surely, 2^4031442 is an apocalyptic number.

4031442 is an abundant number, since it is smaller than the sum of its proper divisors (4703388).

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

4031442 is a wasteful number, since it uses less digits than its factorization.

4031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223977 (or 223974 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4031442 is about 2007.8451135484. The cubic root of 4031442 is about 159.1549456692.

Adding to 4031442 its reverse (2441304), we get a palindrome (6472746).

The spelling of 4031442 in words is "four million, thirty-one thousand, four hundred forty-two".