1596440040 has 128 divisors (see below), whose sum is σ = 5429289600. Its totient is φ = 372280320.

The previous prime is 1596440003. The next prime is 1596440047. The reversal of 1596440040 is 400446951.

It is a junction number, because it is equal to n+sod(n) for n = 1596439983 and 1596440010.

It is not an unprimeable number, because it can be changed into a prime (1596440047) 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, 2710 + ... + 56570.

It is an arithmetic number, because the mean of its divisors is an integer number (42416325).

Almost surely, 2^1596440040 is an apocalyptic number.

1596440040 is a gapful number since it is divisible by the number (10) 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 1596440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2714644800).

1596440040 is an abundant number, since it is smaller than the sum of its proper divisors (3832849560).

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

1596440040 is a wasteful number, since it uses less digits than its factorization.

1596440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53907 (or 53903 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1596440040 is about 39955.4757198560. The cubic root of 1596440040 is about 1168.7390022891.

Adding to 1596440040 its reverse (400446951), we get a palindrome (1996886991).

The spelling of 1596440040 in words is "one billion, five hundred ninety-six million, four hundred forty thousand, forty".