20116770 has 16 divisors (see below), whose sum is σ = 48280320. Its totient is φ = 5364464.

The previous prime is 20116757. The next prime is 20116771. The reversal of 20116770 is 7761102.

It is a self number, because there is not a number n which added to its sum of digits gives 20116770.

It is not an unprimeable number, because it can be changed into a prime (20116771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335250 + ... + 335309.

It is an arithmetic number, because the mean of its divisors is an integer number (3017520).

Almost surely, 2^20116770 is an apocalyptic number.

20116770 is an abundant number, since it is smaller than the sum of its proper divisors (28163550).

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

20116770 is a wasteful number, since it uses less digits than its factorization.

20116770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670569.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 20116770 is about 4485.1722374955. The cubic root of 20116770 is about 271.9690077866.

Adding to 20116770 its reverse (7761102), we get a palindrome (27877872).

The spelling of 20116770 in words is "twenty million, one hundred sixteen thousand, seven hundred seventy".