20354319 has 6 divisors (see below), whose sum is σ = 29400696. Its totient is φ = 13569540.

The previous prime is 20354311. The next prime is 20354357. The reversal of 20354319 is 91345302.

It is not a de Polignac number, because 20354319 - 2³ = 20354311 is a prime.

It is a super-2 number, since 2×20354319² = 828596603907522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20354292 and 20354301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354311) 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 5 ways as a sum of consecutive naturals, for example, 1130787 + ... + 1130804.

It is an arithmetic number, because the mean of its divisors is an integer number (4900116).

Almost surely, 2^20354319 is an apocalyptic number.

20354319 is a deficient number, since it is larger than the sum of its proper divisors (9046377).

20354319 is a wasteful number, since it uses less digits than its factorization.

20354319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261597 (or 2261594 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20354319 is about 4511.5761104075. The cubic root of 20354319 is about 273.0353373731.

The spelling of 20354319 in words is "twenty million, three hundred fifty-four thousand, three hundred nineteen".