40539461 has 4 divisors (see below), whose sum is σ = 40933152. Its totient is φ = 40145772.

The previous prime is 40539439. The next prime is 40539463. The reversal of 40539461 is 16493504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40539461 - 2⁶ = 40539397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40539463) 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, 196691 + ... + 196896.

It is an arithmetic number, because the mean of its divisors is an integer number (10233288).

Almost surely, 2^40539461 is an apocalyptic number.

It is an amenable number.

40539461 is a deficient number, since it is larger than the sum of its proper divisors (393691).

40539461 is a wasteful number, since it uses less digits than its factorization.

40539461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393690.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 40539461 is about 6367.0606248095. The cubic root of 40539461 is about 343.5257712987.

The spelling of 40539461 in words is "forty million, five hundred thirty-nine thousand, four hundred sixty-one".