428619485 has 32 divisors (see below), whose sum is σ = 620961792. Its totient is φ = 277784640.

The previous prime is 428619481. The next prime is 428619491. The reversal of 428619485 is 584916824.

It is not a de Polignac number, because 428619485 - 2² = 428619481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428619481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42062 + ... + 51248.

It is an arithmetic number, because the mean of its divisors is an integer number (19405056).

Almost surely, 2^428619485 is an apocalyptic number.

It is an amenable number.

428619485 is a deficient number, since it is larger than the sum of its proper divisors (192342307).

428619485 is a wasteful number, since it uses less digits than its factorization.

428619485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9273.

The product of its digits is 552960, while the sum is 47.

The square root of 428619485 is about 20703.1274207546. The cubic root of 428619485 is about 753.9756205370.

The spelling of 428619485 in words is "four hundred twenty-eight million, six hundred nineteen thousand, four hundred eighty-five".