20202070 has 32 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 6885600.

The previous prime is 20202031. The next prime is 20202071. The reversal of 20202070 is 7020202.

20202070 is nontrivially palindromic in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 20202070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12615 + ... + 14125.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^20202070 is an apocalyptic number.

20202070 is an abundant number, since it is smaller than the sum of its proper divisors (21601706).

20202070 is a wasteful number, since it uses less digits than its factorization.

20202070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 20202070 is about 4494.6712894271. The cubic root of 20202070 is about 272.3528706640.

Adding to 20202070 its reverse (7020202), we get a palindrome (27222272).

The spelling of 20202070 in words is "twenty million, two hundred two thousand, seventy".