3731433636 has 96 divisors (see below), whose sum is σ = 10582620160. Its totient is φ = 999558144.

The previous prime is 3731433599. The next prime is 3731433647. The reversal of 3731433636 is 6363341373.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3731433594 and 3731433603.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142761 + ... + 166863.

Almost surely, 2^3731433636 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 3731433636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5291310080).

3731433636 is an abundant number, since it is smaller than the sum of its proper divisors (6851186524).

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

3731433636 is a wasteful number, since it uses less digits than its factorization.

3731433636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233 (or 24231 counting only the distinct ones).

The product of its digits is 244944, while the sum is 39.

The square root of 3731433636 is about 61085.4617400900. The cubic root of 3731433636 is about 1551.0480093852.

The spelling of 3731433636 in words is "three billion, seven hundred thirty-one million, four hundred thirty-three thousand, six hundred thirty-six".