20541346 has 16 divisors (see below), whose sum is σ = 36745344. Its totient is φ = 8420544.

The previous prime is 20541331. The next prime is 20541347. The reversal of 20541346 is 64314502.

It is a self number, because there is not a number n which added to its sum of digits gives 20541346.

It is not an unprimeable number, because it can be changed into a prime (20541347) 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, 31575 + ... + 32218.

It is an arithmetic number, because the mean of its divisors is an integer number (2296584).

Almost surely, 2^20541346 is an apocalyptic number.

20541346 is a deficient number, since it is larger than the sum of its proper divisors (16203998).

20541346 is a wasteful number, since it uses less digits than its factorization.

20541346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63825.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20541346 is about 4532.2561710477. The cubic root of 20541346 is about 273.8690567253.

Adding to 20541346 its reverse (64314502), we get a palindrome (84855848).

The spelling of 20541346 in words is "twenty million, five hundred forty-one thousand, three hundred forty-six".