428949495 has 48 divisors (see below), whose sum is σ = 817794432. Its totient is φ = 206668800.

The previous prime is 428949487. The next prime is 428949497. The reversal of 428949495 is 594949824.

It is not a de Polignac number, because 428949495 - 2³ = 428949487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428949497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19695 + ... + 35295.

It is an arithmetic number, because the mean of its divisors is an integer number (17037384).

Almost surely, 2^428949495 is an apocalyptic number.

428949495 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

428949495 is a deficient number, since it is larger than the sum of its proper divisors (388844937).

428949495 is a wasteful number, since it uses less digits than its factorization.

428949495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672 (or 15669 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 428949495 is about 20711.0959391337. The cubic root of 428949495 is about 754.1690754716.

The spelling of 428949495 in words is "four hundred twenty-eight million, nine hundred forty-nine thousand, four hundred ninety-five".