2536740 has 72 divisors (see below), whose sum is σ = 8157240. Its totient is φ = 635904.

The previous prime is 2536733. The next prime is 2536753. The reversal of 2536740 is 476352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 599076 + 1937664 = 774^2 + 1392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2646 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (113295).

2^2536740 is an apocalyptic number.

2536740 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 2536740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4078620).

2536740 is an abundant number, since it is smaller than the sum of its proper divisors (5620500).

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

2536740 is a wasteful number, since it uses less digits than its factorization.

2536740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2536740 is about 1592.7146637110. The cubic root of 2536740 is about 136.3825016324.

The spelling of 2536740 in words is "two million, five hundred thirty-six thousand, seven hundred forty".