20260770 has 32 divisors (see below), whose sum is σ = 51487488. Its totient is φ = 5084928.

The previous prime is 20260741. The next prime is 20260781. The reversal of 20260770 is 7706202.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20260770.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19354 + ... + 20373.

It is an arithmetic number, because the mean of its divisors is an integer number (1608984).

Almost surely, 2^20260770 is an apocalyptic number.

20260770 is an abundant number, since it is smaller than the sum of its proper divisors (31226718).

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

20260770 is a wasteful number, since it uses less digits than its factorization.

20260770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39754.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20260770 is about 4501.1965075966. The cubic root of 20260770 is about 272.6164023083.

Adding to 20260770 its reverse (7706202), we get a palindrome (27966972).

The spelling of 20260770 in words is "twenty million, two hundred sixty thousand, seven hundred seventy".