3203440040 has 32 divisors (see below), whose sum is σ = 7209492480. Its totient is φ = 1281064512.

The previous prime is 3203440039. The next prime is 3203440063. The reversal of 3203440040 is 400443023.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3203439994 and 3203440021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229337 + ... + 242903.

It is an arithmetic number, because the mean of its divisors is an integer number (225296640).

Almost surely, 2^3203440040 is an apocalyptic number.

It is an amenable number.

3203440040 is an abundant number, since it is smaller than the sum of its proper divisors (4006052440).

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

3203440040 is a wasteful number, since it uses less digits than its factorization.

3203440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19481 (or 19477 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 3203440040 is about 56598.9402727648. The cubic root of 3203440040 is about 1474.1404610036.

Adding to 3203440040 its reverse (400443023), we get a palindrome (3603883063).

The spelling of 3203440040 in words is "three billion, two hundred three million, four hundred forty thousand, forty".