40020541 has 8 divisors (see below), whose sum is σ = 44150400. Its totient is φ = 35972640.

The previous prime is 40020527. The next prime is 40020599. The reversal of 40020541 is 14502004.

40020541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40020541 - 2¹⁷ = 39889469 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 (40020521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19461 + ... + 21418.

It is an arithmetic number, because the mean of its divisors is an integer number (5518800).

Almost surely, 2^40020541 is an apocalyptic number.

It is an amenable number.

40020541 is a deficient number, since it is larger than the sum of its proper divisors (4129859).

40020541 is a wasteful number, since it uses less digits than its factorization.

40020541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40979.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40020541 is about 6326.1790205463. The cubic root of 40020541 is about 342.0537203440.

Adding to 40020541 its reverse (14502004), we get a palindrome (54522545).

The spelling of 40020541 in words is "forty million, twenty thousand, five hundred forty-one".