3201600440 has 16 divisors (see below), whose sum is σ = 7203601080. Its totient is φ = 1280640160.

The previous prime is 3201600439. The next prime is 3201600443. The reversal of 3201600440 is 440061023.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201600443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40019966 + ... + 40020045.

Almost surely, 2^3201600440 is an apocalyptic number.

It is an amenable number.

3201600440 is an abundant number, since it is smaller than the sum of its proper divisors (4002000640).

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

3201600440 is a wasteful number, since it uses less digits than its factorization.

3201600440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80040022 (or 80040018 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3201600440 is about 56582.6867513376. The cubic root of 3201600440 is about 1473.8582281518.

Adding to 3201600440 its reverse (440061023), we get a palindrome (3641661463).

The spelling of 3201600440 in words is "three billion, two hundred one million, six hundred thousand, four hundred forty".