6258985440 has 48 divisors (see below), whose sum is σ = 19715805648. Its totient is φ = 1669062656.

The previous prime is 6258985399. The next prime is 6258985483. The reversal of 6258985440 is 445898526.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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, 6519297 + ... + 6520256.

It is an arithmetic number, because the mean of its divisors is an integer number (410745951).

Almost surely, 2^6258985440 is an apocalyptic number.

6258985440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6258985440 is an abundant number, since it is smaller than the sum of its proper divisors (13456820208).

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

6258985440 is a wasteful number, since it uses less digits than its factorization.

6258985440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13039571 (or 13039563 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The square root of 6258985440 is about 79113.7500059250. The cubic root of 6258985440 is about 1842.8980638024.

The spelling of 6258985440 in words is "six billion, two hundred fifty-eight million, nine hundred eighty-five thousand, four hundred forty".