1028457369 has 24 divisors (see below), whose sum is σ = 1503153600. Its totient is φ = 677542752.

The previous prime is 1028457349. The next prime is 1028457371. The reversal of 1028457369 is 9637548201.

1028457369 is a `hidden beast` number, since 1 + 0 + 284 + 5 + 7 + 369 = 666.

1028457369 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1028457369 - 2⁸ = 1028457113 is a prime.

It is a super-2 number, since 2×1028457369² = 2115449119700804322, which contains 22 as substring.

1028457369 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (1028457329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604482 + ... + 606180.

It is an arithmetic number, because the mean of its divisors is an integer number (62631400).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1028457369 = 2056914738, but 3⋅1028457369 = 3085372107 is not.

Almost surely, 2^1028457369 is an apocalyptic number.

It is an amenable number.

1028457369 is a deficient number, since it is larger than the sum of its proper divisors (474696231).

1028457369 is a wasteful number, since it uses less digits than its factorization.

1028457369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1028457369 is about 32069.5707641995. The cubic root of 1028457369 is about 1009.3972055795.

The spelling of 1028457369 in words is "one billion, twenty-eight million, four hundred fifty-seven thousand, three hundred sixty-nine".