2526540 has 48 divisors (see below), whose sum is σ = 7493472. Its totient is φ = 633856.

The previous prime is 2526529. The next prime is 2526541. The reversal of 2526540 is 456252.

It is a self number, because there is not a number n which added to its sum of digits gives 2526540.

It is not an unprimeable number, because it can be changed into a prime (2526541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (156114).

2^2526540 is an apocalyptic number.

2526540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2526540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3746736).

2526540 is an abundant number, since it is smaller than the sum of its proper divisors (4966932).

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

2526540 is a wasteful number, since it uses less digits than its factorization.

2526540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2526540 is about 1589.5093582612. The cubic root of 2526540 is about 136.1994622209.

It can be divided in two parts, 25 and 26540, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 2526540 in words is "two million, five hundred twenty-six thousand, five hundred forty".