1226385 has 12 divisors (see below), whose sum is σ = 2125812. Its totient is φ = 654048.

The previous prime is 1226377. The next prime is 1226387. The reversal of 1226385 is 5836221.

1226385 is a `hidden beast` number, since 1 + 22 + 638 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 690561 = 732^2 + 831^2 .

It is not a de Polignac number, because 1226385 - 2³ = 1226377 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 1 + 2⁸ + 2²⁰ + 6³ + 3¹¹ + 8² + 5³ .

It is not an unprimeable number, because it can be changed into a prime (1226387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13582 + ... + 13671.

It is an arithmetic number, because the mean of its divisors is an integer number (177151).

2^1226385 is an apocalyptic number.

1226385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226385 is a deficient number, since it is larger than the sum of its proper divisors (899427).

1226385 is a wasteful number, since it uses less digits than its factorization.

1226385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27264 (or 27261 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1226385 is about 1107.4226835315. The cubic root of 1226385 is about 107.0390575671.

The spelling of 1226385 in words is "one million, two hundred twenty-six thousand, three hundred eighty-five".