20350092 has 72 divisors (see below), whose sum is σ = 56364336. Its totient is φ = 5695872.

The previous prime is 20350087. The next prime is 20350093. The reversal of 20350092 is 29005302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20350093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30838 + ... + 31490.

It is an arithmetic number, because the mean of its divisors is an integer number (782838).

Almost surely, 2^20350092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20350092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28182168).

20350092 is an abundant number, since it is smaller than the sum of its proper divisors (36014244).

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

20350092 is a wasteful number, since it uses less digits than its factorization.

20350092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 20350092 is about 4511.1076245197. The cubic root of 20350092 is about 273.0164355654.

Adding to 20350092 its reverse (29005302), we get a palindrome (49355394).

The spelling of 20350092 in words is "twenty million, three hundred fifty thousand, ninety-two".