2517240 has 64 divisors (see below), whose sum is σ = 8242560. Its totient is φ = 609920.

The previous prime is 2517239. The next prime is 2517269. The reversal of 2517240 is 427152.

2517240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 367 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (128790).

2^2517240 is an apocalyptic number.

2517240 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 2517240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4121280).

2517240 is an abundant number, since it is smaller than the sum of its proper divisors (5725320).

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

2517240 is a wasteful number, since it uses less digits than its factorization.

2517240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2517240 is about 1586.5812301928. The cubic root of 2517240 is about 136.0321434980.

The spelling of 2517240 in words is "two million, five hundred seventeen thousand, two hundred forty".