428500016 has 20 divisors (see below), whose sum is σ = 948821712. Its totient is φ = 183642816.

The previous prime is 428499983. The next prime is 428500043. The reversal of 428500016 is 610005824.

It is a super-2 number, since 2×428500016² = 367224527424000512, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1912835 + ... + 1913058.

Almost surely, 2^428500016 is an apocalyptic number.

It is an amenable number.

428500016 is an abundant number, since it is smaller than the sum of its proper divisors (520321696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428500016 is a wasteful number, since it uses less digits than its factorization.

428500016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825908 (or 3825902 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 428500016 is about 20700.2419309534. The cubic root of 428500016 is about 753.9055622165.

It can be divided in two parts, 42 and 8500016, that added together give a palindrome (8500058).

The spelling of 428500016 in words is "four hundred twenty-eight million, five hundred thousand, sixteen".