3700224 has 120 divisors (see below), whose sum is σ = 11809512. Its totient is φ = 1105920.

The previous prime is 3700187. The next prime is 3700241. The reversal of 3700224 is 4220073.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3700197 and 3700206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50652 + ... + 50724.

Almost surely, 2^3700224 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 3700224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5904756).

3700224 is an abundant number, since it is smaller than the sum of its proper divisors (8109288).

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

3700224 is a wasteful number, since it uses less digits than its factorization.

3700224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3700224 is about 1923.5966313133. The cubic root of 3700224 is about 154.6711585431.

Adding to 3700224 its product of nonzero digits (336), we get a triangular number (3700560 = T₂₇₂₀).

Adding to 3700224 its reverse (4220073), we get a palindrome (7920297).

The spelling of 3700224 in words is "three million, seven hundred thousand, two hundred twenty-four".