2575240 has 16 divisors (see below), whose sum is σ = 5794380. Its totient is φ = 1030080.

The previous prime is 2575231. The next prime is 2575247. The reversal of 2575240 is 425752.

It can be written as a sum of positive squares in 2 ways, for example, as 2566404 + 8836 = 1602^2 + 94^2 .

It is a super-2 number, since 2×2575240² = 13263722115200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2575247) 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, 32151 + ... + 32230.

2^2575240 is an apocalyptic number.

2575240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2575240 is an abundant number, since it is smaller than the sum of its proper divisors (3219140).

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

2575240 is a wasteful number, since it uses less digits than its factorization.

2575240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64392 (or 64388 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2575240 is about 1604.7554330801. The cubic root of 2575240 is about 137.0689975144.

The spelling of 2575240 in words is "two million, five hundred seventy-five thousand, two hundred forty".