3203400040 has 32 divisors (see below), whose sum is σ = 7212741480. Its totient is φ = 1280454912.

The previous prime is 3203399989. The next prime is 3203400077. The reversal of 3203400040 is 400043023.

It can be written as a sum of positive squares in 4 ways, for example, as 3120116164 + 83283876 = 55858^2 + 9126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3203399987 and 3203400023.

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, 30562 + ... + 85678.

Almost surely, 2^3203400040 is an apocalyptic number.

It is an amenable number.

3203400040 is an abundant number, since it is smaller than the sum of its proper divisors (4009341440).

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

3203400040 is a wasteful number, since it uses less digits than its factorization.

3203400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56581 (or 56577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3203400040 is about 56598.5869081552. The cubic root of 3203400040 is about 1474.1343253220.

Adding to 3203400040 its reverse (400043023), we get a palindrome (3603443063).

The spelling of 3203400040 in words is "three billion, two hundred three million, four hundred thousand, forty".