4261540 has 24 divisors (see below), whose sum is σ = 9169272. Its totient is φ = 1662720.

The previous prime is 4261519. The next prime is 4261541. The reversal of 4261540 is 451624.

4261540 = T₁₄₁ + T₁₄₂ + ... + T₃₀₄.

It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 4260096 = 38^2 + 2064^2 .

It is not an unprimeable number, because it can be changed into a prime (4261541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1779 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (382053).

Almost surely, 2^4261540 is an apocalyptic number.

It is an amenable number.

4261540 is an abundant number, since it is smaller than the sum of its proper divisors (4907732).

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

4261540 is a wasteful number, since it uses less digits than its factorization.

4261540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247 (or 5245 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4261540 is about 2064.3497765640. The cubic root of 4261540 is about 162.1270658832.

The spelling of 4261540 in words is "four million, two hundred sixty-one thousand, five hundred forty".