1228583465 has 8 divisors (see below), whose sum is σ = 1475324928. Its totient is φ = 982183600.

The previous prime is 1228583459. The next prime is 1228583467. The reversal of 1228583465 is 5643858221.

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

It is not a de Polignac number, because 1228583465 - 2¹⁰ = 1228582441 is a prime.

It is a super-3 number, since 3×1228583465³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228583467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77417 + ... + 91926.

It is an arithmetic number, because the mean of its divisors is an integer number (184415616).

Almost surely, 2^1228583465 is an apocalyptic number.

It is an amenable number.

1228583465 is a deficient number, since it is larger than the sum of its proper divisors (246741463).

1228583465 is a wasteful number, since it uses less digits than its factorization.

1228583465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170799.

The product of its digits is 460800, while the sum is 44.

The square root of 1228583465 is about 35051.1549738379. The cubic root of 1228583465 is about 1071.0298016509.

The spelling of 1228583465 in words is "one billion, two hundred twenty-eight million, five hundred eighty-three thousand, four hundred sixty-five".