428619478 has 16 divisors (see below), whose sum is σ = 760114080. Its totient is φ = 177359616.

The previous prime is 428619473. The next prime is 428619479. The reversal of 428619478 is 874916824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428619473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527451 + ... + 528262.

It is an arithmetic number, because the mean of its divisors is an integer number (47507130).

Almost surely, 2^428619478 is an apocalyptic number.

428619478 is a deficient number, since it is larger than the sum of its proper divisors (331494602).

428619478 is a wasteful number, since it uses less digits than its factorization.

428619478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055751.

The product of its digits is 774144, while the sum is 49.

The square root of 428619478 is about 20703.1272516980. The cubic root of 428619478 is about 753.9756164324.

The spelling of 428619478 in words is "four hundred twenty-eight million, six hundred nineteen thousand, four hundred seventy-eight".