3624440 has 48 divisors (see below), whose sum is σ = 8641080. Its totient is φ = 1368000.

The previous prime is 3624433. The next prime is 3624443. The reversal of 3624440 is 444263.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3624443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14315 + ... + 14565.

Almost surely, 2^3624440 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 3624440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4320540).

3624440 is an abundant number, since it is smaller than the sum of its proper divisors (5016640).

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

3624440 is a wasteful number, since it uses less digits than its factorization.

3624440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3624440 is about 1903.7962075811. The cubic root of 3624440 is about 153.6079305439.

The spelling of 3624440 in words is "three million, six hundred twenty-four thousand, four hundred forty".