20345941 has 16 divisors (see below), whose sum is σ = 26703360. Its totient is φ = 15018480.

The previous prime is 20345933. The next prime is 20345947. The reversal of 20345941 is 14954302.

It is a cyclic number.

It is not a de Polignac number, because 20345941 - 2³ = 20345933 is a prime.

It is a super-3 number, since 3×20345941³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345947) 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 15 ways as a sum of consecutive naturals, for example, 5491 + ... + 8416.

It is an arithmetic number, because the mean of its divisors is an integer number (1668960).

Almost surely, 2^20345941 is an apocalyptic number.

It is an amenable number.

20345941 is a deficient number, since it is larger than the sum of its proper divisors (6357419).

20345941 is a wasteful number, since it uses less digits than its factorization.

20345941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13944.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20345941 is about 4510.6475144928. The cubic root of 20345941 is about 272.9978710582.

The spelling of 20345941 in words is "twenty million, three hundred forty-five thousand, nine hundred forty-one".