20900435 has 8 divisors (see below), whose sum is σ = 25329456. Its totient is φ = 16554400.

The previous prime is 20900413. The next prime is 20900441. The reversal of 20900435 is 53400902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20900435 - 2⁶ = 20900371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20900435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20189 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (3166182).

Almost surely, 2^20900435 is an apocalyptic number.

20900435 is a deficient number, since it is larger than the sum of its proper divisors (4429021).

20900435 is a wasteful number, since it uses less digits than its factorization.

20900435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41493.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 20900435 is about 4571.6993558195. The cubic root of 20900435 is about 275.4557072325.

The spelling of 20900435 in words is "twenty million, nine hundred thousand, four hundred thirty-five".