1228465 has 8 divisors (see below), whose sum is σ = 1684800. Its totient is φ = 842352.

The previous prime is 1228459. The next prime is 1228489. The reversal of 1228465 is 5648221.

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

It is not a de Polignac number, because 1228465 - 2³ = 1228457 is a prime.

It is a super-3 number, since 3×1228465³ = 5561726359060333875, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17515 + ... + 17584.

It is an arithmetic number, because the mean of its divisors is an integer number (210600).

2^1228465 is an apocalyptic number.

It is an amenable number.

1228465 is a deficient number, since it is larger than the sum of its proper divisors (456335).

1228465 is an equidigital number, since it uses as much as digits as its factorization.

1228465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35111.

The product of its digits is 3840, while the sum is 28.

The square root of 1228465 is about 1108.3614031533. The cubic root of 1228465 is about 107.0995376199.

The spelling of 1228465 in words is "one million, two hundred twenty-eight thousand, four hundred sixty-five".