20618094 has 32 divisors (see below), whose sum is σ = 47321856. Its totient is φ = 5866560.

The previous prime is 20618083. The next prime is 20618107. The reversal of 20618094 is 49081602.

It is a super-3 number, since 3×20618094³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10929 + ... + 12675.

It is an arithmetic number, because the mean of its divisors is an integer number (1478808).

Almost surely, 2^20618094 is an apocalyptic number.

20618094 is an abundant number, since it is smaller than the sum of its proper divisors (26703762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20618094 is a wasteful number, since it uses less digits than its factorization.

20618094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20618094 is about 4540.7151419132. The cubic root of 20618094 is about 274.2097156600.

Adding to 20618094 its reverse (49081602), we get a palindrome (69699696).

The spelling of 20618094 in words is "twenty million, six hundred eighteen thousand, ninety-four".