19957341 has 4 divisors (see below), whose sum is σ = 26609792. Its totient is φ = 13304892.

The previous prime is 19957339. The next prime is 19957349. The reversal of 19957341 is 14375991.

It is a happy number.

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 not a de Polignac number, because 19957341 - 2¹ = 19957339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19957341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19957349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326221 + ... + 3326226.

It is an arithmetic number, because the mean of its divisors is an integer number (6652448).

Almost surely, 2^19957341 is an apocalyptic number.

It is an amenable number.

19957341 is a deficient number, since it is larger than the sum of its proper divisors (6652451).

19957341 is an equidigital number, since it uses as much as digits as its factorization.

19957341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652450.

The product of its digits is 34020, while the sum is 39.

The square root of 19957341 is about 4467.3639878568. The cubic root of 19957341 is about 271.2486337151.

The spelling of 19957341 in words is "nineteen million, nine hundred fifty-seven thousand, three hundred forty-one".