428309480 has 16 divisors (see below), whose sum is σ = 963696420. Its totient is φ = 171323776.

The previous prime is 428309477. The next prime is 428309501. The reversal of 428309480 is 84903824.

It can be written as a sum of positive squares in 2 ways, for example, as 419512324 + 8797156 = 20482^2 + 2966^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5353829 + ... + 5353908.

Almost surely, 2^428309480 is an apocalyptic number.

428309480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428309480 is an abundant number, since it is smaller than the sum of its proper divisors (535386940).

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

428309480 is a wasteful number, since it uses less digits than its factorization.

428309480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10707748 (or 10707744 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 428309480 is about 20695.6391541793. The cubic root of 428309480 is about 753.7938022466.

The spelling of 428309480 in words is "four hundred twenty-eight million, three hundred nine thousand, four hundred eighty".