428842880426 has 4 divisors (see below), whose sum is σ = 643264320642. Its totient is φ = 214421440212.

The previous prime is 428842880419. The next prime is 428842880429. The reversal of 428842880426 is 624088248824.

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., 302923648225 + 125919232201 = 550385^2 + 354851^2 .

It is not an unprimeable number, because it can be changed into a prime (428842880429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107210720105 + ... + 107210720108.

Almost surely, 2^428842880426 is an apocalyptic number.

428842880426 is a deficient number, since it is larger than the sum of its proper divisors (214421440216).

428842880426 is a wasteful number, since it uses less digits than its factorization.

428842880426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214421440215.

The product of its (nonzero) digits is 12582912, while the sum is 56.

The spelling of 428842880426 in words is "four hundred twenty-eight billion, eight hundred forty-two million, eight hundred eighty thousand, four hundred twenty-six".