2457340 has 12 divisors (see below), whose sum is σ = 5160456. Its totient is φ = 982928.

The previous prime is 2457337. The next prime is 2457341. The reversal of 2457340 is 437542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2457341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61414 + ... + 61453.

It is an arithmetic number, because the mean of its divisors is an integer number (430038).

2^2457340 is an apocalyptic number.

2457340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2457340 is an abundant number, since it is smaller than the sum of its proper divisors (2703116).

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

2457340 is a wasteful number, since it uses less digits than its factorization.

2457340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122876 (or 122874 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 2457340 is about 1567.5905077539. The cubic root of 2457340 is about 134.9444673288.

The spelling of 2457340 in words is "two million, four hundred fifty-seven thousand, three hundred forty".