428049099 has 12 divisors (see below), whose sum is σ = 618506200. Its totient is φ = 285267744.

The previous prime is 428049053. The next prime is 428049101. The reversal of 428049099 is 990940824.

It is not a de Polignac number, because 428049099 - 2²³ = 419660491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428049049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27612 + ... + 40230.

Almost surely, 2^428049099 is an apocalyptic number.

428049099 is a deficient number, since it is larger than the sum of its proper divisors (190457101).

428049099 is a wasteful number, since it uses less digits than its factorization.

428049099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16394 (or 16391 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 428049099 is about 20689.3474764189. The cubic root of 428049099 is about 753.6410206872.

The spelling of 428049099 in words is "four hundred twenty-eight million, forty-nine thousand, ninety-nine".