3242400440 has 32 divisors (see below), whose sum is σ = 7298102160. Its totient is φ = 1296480000.

The previous prime is 3242400439. The next prime is 3242400443. The reversal of 3242400440 is 440042423.

It is a super-2 number, since 2×3242400440² = 21026321226624387200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242400443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106535 + ... + 133545.

Almost surely, 2^3242400440 is an apocalyptic number.

It is an amenable number.

3242400440 is an abundant number, since it is smaller than the sum of its proper divisors (4055701720).

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

3242400440 is a wasteful number, since it uses less digits than its factorization.

3242400440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30023 (or 30019 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 3242400440 is about 56942.0796950726. The cubic root of 3242400440 is about 1480.0925861241.

Adding to 3242400440 its reverse (440042423), we get a palindrome (3682442863).

The spelling of 3242400440 in words is "three billion, two hundred forty-two million, four hundred thousand, four hundred forty".