4140549 has 36 divisors (see below), whose sum is σ = 7158060. Its totient is φ = 2298240.

The previous prime is 4140511. The next prime is 4140557. The reversal of 4140549 is 9450414.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 2160900 = 1407^2 + 1470^2 .

It is not a de Polignac number, because 4140549 - 2⁷ = 4140421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140569) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17967 + ... + 18195.

It is an arithmetic number, because the mean of its divisors is an integer number (198835).

Almost surely, 2^4140549 is an apocalyptic number.

4140549 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4140549 is a deficient number, since it is larger than the sum of its proper divisors (3017511).

4140549 is a wasteful number, since it uses less digits than its factorization.

4140549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4140549 is about 2034.8338998552. The cubic root of 4140549 is about 160.5779747476.

The spelling of 4140549 in words is "four million, one hundred forty thousand, five hundred forty-nine".