20049093 has 8 divisors (see below), whose sum is σ = 29702400. Its totient is φ = 13366044.

The previous prime is 20049091. The next prime is 20049101. The reversal of 20049093 is 39094002.

It is not a de Polignac number, because 20049093 - 2¹ = 20049091 is a prime.

It is a super-2 number, since 2×20049093² = 803932260245298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 742559 = 20049093 / (2 + 0 + 0 + 4 + 9 + 0 + 9 + 3).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20049091) 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 7 ways as a sum of consecutive naturals, for example, 371253 + ... + 371306.

It is an arithmetic number, because the mean of its divisors is an integer number (3712800).

Almost surely, 2^20049093 is an apocalyptic number.

It is an amenable number.

20049093 is a deficient number, since it is larger than the sum of its proper divisors (9653307).

20049093 is an equidigital number, since it uses as much as digits as its factorization.

20049093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742568 (or 742562 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20049093 is about 4477.6213551394. The cubic root of 20049093 is about 271.6636783559.

The spelling of 20049093 in words is "twenty million, forty-nine thousand, ninety-three".