428900190106 has 4 divisors (see below), whose sum is σ = 643350285162. Its totient is φ = 214450095052.

The previous prime is 428900190079. The next prime is 428900190113. The reversal of 428900190106 is 601091009824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 427617905625 + 1282284481 = 653925^2 + 35809^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107225047525 + ... + 107225047528.

Almost surely, 2^428900190106 is an apocalyptic number.

428900190106 is a deficient number, since it is larger than the sum of its proper divisors (214450095056).

428900190106 is a wasteful number, since it uses less digits than its factorization.

428900190106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214450095055.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 428900190106 in words is "four hundred twenty-eight billion, nine hundred million, one hundred ninety thousand, one hundred six".