1072228809 has 8 divisors (see below), whose sum is σ = 1468277440. Its totient is φ = 695499696.

The previous prime is 1072228793. The next prime is 1072228819. The reversal of 1072228809 is 9088222701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1072228809 - 2⁴ = 1072228793 is a prime.

It is a super-2 number, since 2×1072228809² = 2299349237699116962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072228819) 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 7 ways as a sum of consecutive naturals, for example, 4829749 + ... + 4829970.

It is an arithmetic number, because the mean of its divisors is an integer number (183534680).

Almost surely, 2^1072228809 is an apocalyptic number.

It is an amenable number.

1072228809 is a deficient number, since it is larger than the sum of its proper divisors (396048631).

1072228809 is an equidigital number, since it uses as much as digits as its factorization.

1072228809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659759.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1072228809 is about 32744.9050846082. The cubic root of 1072228809 is about 1023.5187993932.

The spelling of 1072228809 in words is "one billion, seventy-two million, two hundred twenty-eight thousand, eight hundred nine".