2456540 has 12 divisors (see below), whose sum is σ = 5158776. Its totient is φ = 982608.

The previous prime is 2456539. The next prime is 2456557. The reversal of 2456540 is 456542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61394 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (429898).

2^2456540 is an apocalyptic number.

2456540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2456540 is an abundant number, since it is smaller than the sum of its proper divisors (2702236).

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

2456540 is a wasteful number, since it uses less digits than its factorization.

2456540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122836 (or 122834 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2456540 is about 1567.3353183030. The cubic root of 2456540 is about 134.9298217783.

The spelling of 2456540 in words is "two million, four hundred fifty-six thousand, five hundred forty".