20530692 has 96 divisors (see below), whose sum is σ = 65542400. Its totient is φ = 5412096.

The previous prime is 20530673. The next prime is 20530723. The reversal of 20530692 is 29603502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8784 + ... + 10872.

Almost surely, 2^20530692 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 20530692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32771200).

20530692 is an abundant number, since it is smaller than the sum of its proper divisors (45011708).

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

20530692 is a wasteful number, since it uses less digits than its factorization.

20530692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20530692 is about 4531.0806658015. The cubic root of 20530692 is about 273.8217001154.

The spelling of 20530692 in words is "twenty million, five hundred thirty thousand, six hundred ninety-two".