2405040 has 80 divisors (see below), whose sum is σ = 8142336. Its totient is φ = 582400.

The previous prime is 2405027. The next prime is 2405063. The reversal of 2405040 is 405042.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185 + ... + 3095.

2^2405040 is an apocalyptic number.

2405040 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 2405040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071168).

2405040 is an abundant number, since it is smaller than the sum of its proper divisors (5737296).

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

2405040 is a wasteful number, since it uses less digits than its factorization.

2405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2405040 is about 1550.8191383911. The cubic root of 2405040 is about 133.9802451014.

It can be divided in two parts, 24050 and 40, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 2405040 in words is "two million, four hundred five thousand, forty".