20416541 has 8 divisors (see below), whose sum is σ = 21674304. Its totient is φ = 19165120.

The previous prime is 20416457. The next prime is 20416549. The reversal of 20416541 is 14561402.

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

It is a de Polignac number, because none of the positive numbers 2^k-20416541 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 (20416549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6176 + ... + 8886.

It is an arithmetic number, because the mean of its divisors is an integer number (2709288).

Almost surely, 2^20416541 is an apocalyptic number.

It is an amenable number.

20416541 is a deficient number, since it is larger than the sum of its proper divisors (1257763).

20416541 is a wasteful number, since it uses less digits than its factorization.

20416541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20416541 is about 4518.4666646994. The cubic root of 20416541 is about 273.3132722074.

Adding to 20416541 its reverse (14561402), we get a palindrome (34977943).

The spelling of 20416541 in words is "twenty million, four hundred sixteen thousand, five hundred forty-one".