2860557840 has 240 divisors, whose sum is σ = 11456909568. Its totient is φ = 625388544.

The previous prime is 2860557809. The next prime is 2860557841. The reversal of 2860557840 is 487550682.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2860557841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103582 + ... + 128258.

Almost surely, 2^2860557840 is an apocalyptic number.

2860557840 is a gapful number since it is divisible by the number (20) 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 2860557840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5728454784).

2860557840 is an abundant number, since it is smaller than the sum of its proper divisors (8596351728).

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

2860557840 is a wasteful number, since it uses less digits than its factorization.

2860557840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24726 (or 24717 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2860557840 is about 53484.1830824778. The cubic root of 2860557840 is about 1419.5485306817.

The spelling of 2860557840 in words is "two billion, eight hundred sixty million, five hundred fifty-seven thousand, eight hundred forty".