2600040 has 64 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 677120.

The previous prime is 2600033. The next prime is 2600051. The reversal of 2600040 is 400062.

2600040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 2599989 and 2600025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5410 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

2^2600040 is an apocalyptic number.

2600040 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 2600040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3991680).

2600040 is an abundant number, since it is smaller than the sum of its proper divisors (5383320).

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

2600040 is a wasteful number, since it uses less digits than its factorization.

2600040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2600040 is about 1612.4639530855. The cubic root of 2600040 is about 137.5075918673.

The spelling of 2600040 in words is "two million, six hundred thousand, forty".