428461982 has 24 divisors (see below), whose sum is σ = 736880976. Its totient is φ = 186116736.

The previous prime is 428461981. The next prime is 428461991. The reversal of 428461982 is 289164824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428461981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31538 + ... + 43029.

It is an arithmetic number, because the mean of its divisors is an integer number (30703374).

Almost surely, 2^428461982 is an apocalyptic number.

428461982 is a deficient number, since it is larger than the sum of its proper divisors (308418994).

428461982 is a wasteful number, since it uses less digits than its factorization.

428461982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74612 (or 74599 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 428461982 is about 20699.3232256516. The cubic root of 428461982 is about 753.8832558054.

It can be divided in two parts, 4284 and 61982, that added together give a palindrome (66266).

The spelling of 428461982 in words is "four hundred twenty-eight million, four hundred sixty-one thousand, nine hundred eighty-two".