3104402640 has 160 divisors (see below), whose sum is σ = 10407191040. Its totient is φ = 762519552.

The previous prime is 3104402627. The next prime is 3104402659. The reversal of 3104402640 is 462044013.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3104402640.

It is a congruent number.

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, 183666 + ... + 199854.

It is an arithmetic number, because the mean of its divisors is an integer number (65044944).

Almost surely, 2^3104402640 is an apocalyptic number.

3104402640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3104402640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5203595520).

3104402640 is an abundant number, since it is smaller than the sum of its proper divisors (7302788400).

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

3104402640 is a wasteful number, since it uses less digits than its factorization.

3104402640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16269 (or 16263 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3104402640 is about 55717.1664749743. The cubic root of 3104402640 is about 1458.7896768608.

Adding to 3104402640 its reverse (462044013), we get a palindrome (3566446653).

The spelling of 3104402640 in words is "three billion, one hundred four million, four hundred two thousand, six hundred forty".