1028272269 has 16 divisors (see below), whose sum is σ = 1396604160. Its totient is φ = 672840960.

The previous prime is 1028272241. The next prime is 1028272283. The reversal of 1028272269 is 9622728201.

It is not a de Polignac number, because 1028272269 - 2⁹ = 1028271757 is a prime.

It is a super-2 number, since 2×1028272269² = 2114687718388816722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028272969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22524 + ... + 50634.

It is an arithmetic number, because the mean of its divisors is an integer number (87287760).

Almost surely, 2^1028272269 is an apocalyptic number.

It is an amenable number.

1028272269 is a deficient number, since it is larger than the sum of its proper divisors (368331891).

1028272269 is a wasteful number, since it uses less digits than its factorization.

1028272269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28340.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1028272269 is about 32066.6847210621. The cubic root of 1028272269 is about 1009.3366454180.

The spelling of 1028272269 in words is "one billion, twenty-eight million, two hundred seventy-two thousand, two hundred sixty-nine".