428905894 has 16 divisors (see below), whose sum is σ = 667468800. Its totient is φ = 206486280.

The previous prime is 428905891. The next prime is 428905907. The reversal of 428905894 is 498509824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428905891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5044 + ... + 29719.

It is an arithmetic number, because the mean of its divisors is an integer number (41716800).

Almost surely, 2^428905894 is an apocalyptic number.

428905894 is a deficient number, since it is larger than the sum of its proper divisors (238562906).

428905894 is a wasteful number, since it uses less digits than its factorization.

428905894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34995.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 428905894 is about 20710.0433123642. The cubic root of 428905894 is about 754.1435218494.

It can be divided in two parts, 42890 and 5894, that added together give a palindrome (48784).

The spelling of 428905894 in words is "four hundred twenty-eight million, nine hundred five thousand, eight hundred ninety-four".