20543094 has 96 divisors (see below), whose sum is σ = 54722304. Its totient is φ = 5480640.

The previous prime is 20543093. The next prime is 20543119. The reversal of 20543094 is 49034502.

It is a super-2 number, since 2×20543094² = 844037422185672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20543093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59029 + ... + 59375.

It is an arithmetic number, because the mean of its divisors is an integer number (570024).

Almost surely, 2^20543094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20543094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27361152).

20543094 is an abundant number, since it is smaller than the sum of its proper divisors (34179210).

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

20543094 is a wasteful number, since it uses less digits than its factorization.

20543094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20543094 is about 4532.4490068836. The cubic root of 20543094 is about 273.8768249525.

Adding to 20543094 its reverse (49034502), we get a palindrome (69577596).

The spelling of 20543094 in words is "twenty million, five hundred forty-three thousand, ninety-four".