3685996224 has 126 divisors (see below), whose sum is σ = 10918690380. Its totient is φ = 1188852480.

The previous prime is 3685996199. The next prime is 3685996229. The reversal of 3685996224 is 4226995863.

It is a happy number.

3685996224 is a `hidden beast` number, since 3 + 6 + 8 + 5 + 9 + 9 + 622 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (3685996229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 550207 + ... + 556865.

Almost surely, 2^3685996224 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 3685996224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5459345190).

3685996224 is an abundant number, since it is smaller than the sum of its proper divisors (7232694156).

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

3685996224 is a wasteful number, since it uses less digits than its factorization.

3685996224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739 (or 6695 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 3685996224 is about 60712.4058492167. The cubic root of 3685996224 is about 1544.7266126381.

The spelling of 3685996224 in words is "three billion, six hundred eighty-five million, nine hundred ninety-six thousand, two hundred twenty-four".