3742224 has 40 divisors (see below), whose sum is σ = 9856512. Its totient is φ = 1223040.

The previous prime is 3742223. The next prime is 3742229. The reversal of 3742224 is 4222473.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 3742194 and 3742203.

It is not an unprimeable number, because it can be changed into a prime (3742223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1809 + ... + 3279.

Almost surely, 2^3742224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3742224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4928256).

3742224 is an abundant number, since it is smaller than the sum of its proper divisors (6114288).

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

3742224 is a wasteful number, since it uses less digits than its factorization.

3742224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1529 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 3742224 is about 1934.4828766365. The cubic root of 3742224 is about 155.2541650315.

Adding to 3742224 its reverse (4222473), we get a palindrome (7964697).

Subtracting 3742224 from its reverse (4222473), we obtain a square (480249 = 693²).

The spelling of 3742224 in words is "three million, seven hundred forty-two thousand, two hundred twenty-four".