2586215040 has 64 divisors (see below), whose sum is σ = 8243566560. Its totient is φ = 689656832.

The previous prime is 2586215017. The next prime is 2586215057. The reversal of 2586215040 is 405126852.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 2586214992 and 2586215010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671574 + ... + 675413.

Almost surely, 2^2586215040 is an apocalyptic number.

2586215040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2586215040 is an abundant number, since it is smaller than the sum of its proper divisors (5657351520).

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

2586215040 is a wasteful number, since it uses less digits than its factorization.

2586215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347009 (or 1346997 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2586215040 is about 50854.8428372363. The cubic root of 2586215040 is about 1372.6343968114.

The spelling of 2586215040 in words is "two billion, five hundred eighty-six million, two hundred fifteen thousand, forty".