2574540 has 36 divisors (see below), whose sum is σ = 7809984. Its totient is φ = 686496.

The previous prime is 2574529. The next prime is 2574541. The reversal of 2574540 is 454752.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2574541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6972 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (216944).

2^2574540 is an apocalyptic number.

2574540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2574540 is an abundant number, since it is smaller than the sum of its proper divisors (5235444).

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

2574540 is a wasteful number, since it uses less digits than its factorization.

2574540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14318 (or 14313 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 2574540 is about 1604.5373164872. The cubic root of 2574540 is about 137.0565770548.

The spelling of 2574540 in words is "two million, five hundred seventy-four thousand, five hundred forty".