1224477 has 12 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 816156.

The previous prime is 1224473. The next prime is 1224479. The reversal of 1224477 is 7744221.

It is a happy number.

It is not a de Polignac number, because 1224477 - 2² = 1224473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1224477 is a lucky number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1224477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224473) 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, 2277 + ... + 2762.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

2^1224477 is an apocalyptic number.

It is an amenable number.

1224477 is a deficient number, since it is larger than the sum of its proper divisors (610083).

1224477 is an frugal number, since it uses more digits than its factorization.

1224477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054 (or 5042 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1224477 is about 1106.5608885190. The cubic root of 1224477 is about 106.9835185841.

Adding to 1224477 its reverse (7744221), we get a palindrome (8968698).

It can be divided in two parts, 12244 and 77, that added together give a palindrome (12321).

The spelling of 1224477 in words is "one million, two hundred twenty-four thousand, four hundred seventy-seven".