3115440636 has 96 divisors (see below), whose sum is σ = 9090009600. Its totient is φ = 806803200.

The previous prime is 3115440631. The next prime is 3115440641. The reversal of 3115440636 is 6360445113.

It is an interprime number because it is at equal distance from previous prime (3115440631) and next prime (3115440641).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 3115440597 and 3115440606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115440631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 317646 + ... + 327306.

It is an arithmetic number, because the mean of its divisors is an integer number (94687600).

Almost surely, 2^3115440636 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 3115440636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4545004800).

3115440636 is an abundant number, since it is smaller than the sum of its proper divisors (5974568964).

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

3115440636 is a wasteful number, since it uses less digits than its factorization.

3115440636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035 (or 10033 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 3115440636 is about 55816.1323991550. The cubic root of 3115440636 is about 1460.5165864466.

Adding to 3115440636 its reverse (6360445113), we get a palindrome (9475885749).

The spelling of 3115440636 in words is "three billion, one hundred fifteen million, four hundred forty thousand, six hundred thirty-six".