20675419 has 8 divisors (see below), whose sum is σ = 21395840. Its totient is φ = 19958400.

The previous prime is 20675399. The next prime is 20675423. The reversal of 20675419 is 91457602.

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

It is a cyclic number.

It is not a de Polignac number, because 20675419 - 2¹⁵ = 20642651 is a prime.

It is a super-2 number, since 2×20675419² = 854945901651122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20675719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19987 + ... + 20995.

It is an arithmetic number, because the mean of its divisors is an integer number (2674480).

Almost surely, 2^20675419 is an apocalyptic number.

20675419 is a deficient number, since it is larger than the sum of its proper divisors (720421).

20675419 is a wasteful number, since it uses less digits than its factorization.

20675419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 20675419 is about 4547.0230920900. The cubic root of 20675419 is about 274.4636112006.

It can be divided in two parts, 206 and 75419, that added together give a square (75625 = 275²).

The spelling of 20675419 in words is "twenty million, six hundred seventy-five thousand, four hundred nineteen".