1224455242 has 16 divisors (see below), whose sum is σ = 1885157064. Its totient is φ = 596128000.

The previous prime is 1224455227. The next prime is 1224455269. The reversal of 1224455242 is 2425544221.

It can be written as a sum of positive squares in 4 ways, for example, as 991557121 + 232898121 = 31489^2 + 15261^2 .

It is a super-2 number, since 2×1224455242² = 2998581279322557128, which contains 22 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, 28392 + ... + 57052.

Almost surely, 2^1224455242 is an apocalyptic number.

1224455242 is a deficient number, since it is larger than the sum of its proper divisors (660701822).

1224455242 is a wasteful number, since it uses less digits than its factorization.

1224455242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29225.

The product of its digits is 25600, while the sum is 31.

The square root of 1224455242 is about 34992.2168774715. The cubic root of 1224455242 is about 1069.8288490918.

Adding to 1224455242 its reverse (2425544221), we get a palindrome (3649999463).

The spelling of 1224455242 in words is "one billion, two hundred twenty-four million, four hundred fifty-five thousand, two hundred forty-two".