1568255040 has 448 divisors, whose sum is σ = 6254496000. Its totient is φ = 366428160.

The previous prime is 1568255009. The next prime is 1568255047. The reversal of 1568255040 is 405528651.

1568255040 is a `hidden beast` number, since 1 + 5 + 68 + 2 + 550 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1568254986 and 1568255004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568255047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2755876 + ... + 2756444.

Almost surely, 2^1568255040 is an apocalyptic number.

1568255040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1568255040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3127248000).

1568255040 is an abundant number, since it is smaller than the sum of its proper divisors (4686240960).

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

1568255040 is a wasteful number, since it uses less digits than its factorization.

1568255040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 1568255040 is about 39601.1999818187. The cubic root of 1568255040 is about 1161.8201310834.

The spelling of 1568255040 in words is "one billion, five hundred sixty-eight million, two hundred fifty-five thousand, forty".