20270770 has 32 divisors (see below), whose sum is σ = 39533760. Its totient is φ = 7439040.

The previous prime is 20270753. The next prime is 20270773. The reversal of 20270770 is 7707202.

It is not an unprimeable number, because it can be changed into a prime (20270773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27061 + ... + 27799.

It is an arithmetic number, because the mean of its divisors is an integer number (1235430).

Almost surely, 2^20270770 is an apocalyptic number.

20270770 is a deficient number, since it is larger than the sum of its proper divisors (19262990).

20270770 is a wasteful number, since it uses less digits than its factorization.

20270770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 20270770 is about 4502.3071863213. The cubic root of 20270770 is about 272.6612462050.

Adding to 20270770 its reverse (7707202), we get a palindrome (27977972).

The spelling of 20270770 in words is "twenty million, two hundred seventy thousand, seven hundred seventy".