2578040 has 16 divisors (see below), whose sum is σ = 5800680. Its totient is φ = 1031200.

The previous prime is 2578031. The next prime is 2578057. The reversal of 2578040 is 408752.

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, 32186 + ... + 32265.

2^2578040 is an apocalyptic number.

2578040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2578040 is an abundant number, since it is smaller than the sum of its proper divisors (3222640).

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

2578040 is a wasteful number, since it uses less digits than its factorization.

2578040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64462 (or 64458 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2578040 is about 1605.6276031509. The cubic root of 2578040 is about 137.1186568575.

The spelling of 2578040 in words is "two million, five hundred seventy-eight thousand, forty".