20352070 has 16 divisors (see below), whose sum is σ = 36823248. Its totient is φ = 8098720.

The previous prime is 20352061. The next prime is 20352083. The reversal of 20352070 is 7025302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3196 + ... + 7135.

It is an arithmetic number, because the mean of its divisors is an integer number (2301453).

Almost surely, 2^20352070 is an apocalyptic number.

20352070 is a deficient number, since it is larger than the sum of its proper divisors (16471178).

20352070 is a wasteful number, since it uses less digits than its factorization.

20352070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10535.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 20352070 is about 4511.3268558153. The cubic root of 20352070 is about 273.0252808819.

Adding to 20352070 its reverse (7025302), we get a palindrome (27377372).

The spelling of 20352070 in words is "twenty million, three hundred fifty-two thousand, seventy".