20761092 has 72 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 6217920.

The previous prime is 20761087. The next prime is 20761093. The reversal of 20761092 is 29016702.

It is not an unprimeable number, because it can be changed into a prime (20761093) 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, 40534 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (804440).

Almost surely, 2^20761092 is an apocalyptic number.

20761092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20761092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28959840).

20761092 is an abundant number, since it is smaller than the sum of its proper divisors (37158588).

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

20761092 is a wasteful number, since it uses less digits than its factorization.

20761092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20761092 is about 4556.4341320818. The cubic root of 20761092 is about 274.8421882432.

Adding to 20761092 its reverse (29016702), we get a palindrome (49777794).

It can be divided in two parts, 207610 and 92, that added together give a palindrome (207702).

The spelling of 20761092 in words is "twenty million, seven hundred sixty-one thousand, ninety-two".