6258440440 has 64 divisors (see below), whose sum is σ = 16110912960. Its totient is φ = 2143380480.

The previous prime is 6258440431. The next prime is 6258440459. The reversal of 6258440440 is 440448526.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6258440440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251604 + ... + 275356.

It is an arithmetic number, because the mean of its divisors is an integer number (251733015).

Almost surely, 2^6258440440 is an apocalyptic number.

It is an amenable number.

6258440440 is an abundant number, since it is smaller than the sum of its proper divisors (9852472520).

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

6258440440 is a wasteful number, since it uses less digits than its factorization.

6258440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24712 (or 24708 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

The square root of 6258440440 is about 79110.3055233640. The cubic root of 6258440440 is about 1842.8445722471.

Adding to 6258440440 its reverse (440448526), we get a palindrome (6698888966).

The spelling of 6258440440 in words is "six billion, two hundred fifty-eight million, four hundred forty thousand, four hundred forty".