20219093 has 8 divisors (see below), whose sum is σ = 21143808. Its totient is φ = 19298224.

The previous prime is 20219083. The next prime is 20219107. The reversal of 20219093 is 39091202.

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 20219093 - 2⁴ = 20219077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20219033) 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 7 ways as a sum of consecutive naturals, for example, 17780 + ... + 18882.

It is an arithmetic number, because the mean of its divisors is an integer number (2642976).

Almost surely, 2^20219093 is an apocalyptic number.

20219093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20219093 is a deficient number, since it is larger than the sum of its proper divisors (924715).

20219093 is a wasteful number, since it uses less digits than its factorization.

20219093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 20219093 is about 4496.5645775414. The cubic root of 20219093 is about 272.4293473369.

It can be divided in two parts, 2021 and 9093, that multiplied together give a triangular number (18376953 = T₆₀₆₂).

The spelling of 20219093 in words is "twenty million, two hundred nineteen thousand, ninety-three".