1224623142 has 24 divisors (see below), whose sum is σ = 2661839544. Its totient is φ = 406901664.

The previous prime is 1224623083. The next prime is 1224623159. The reversal of 1224623142 is 2413264221.

1224623142 is a `hidden beast` number, since 1 + 2 + 24 + 623 + 14 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103048 + ... + 114315.

It is an arithmetic number, because the mean of its divisors is an integer number (110909981).

Almost surely, 2^1224623142 is an apocalyptic number.

1224623142 is an abundant number, since it is smaller than the sum of its proper divisors (1437216402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224623142 is a wasteful number, since it uses less digits than its factorization.

1224623142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217684 (or 217681 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1224623142 is about 34994.6159001638. The cubic root of 1224623142 is about 1069.8777459531.

Adding to 1224623142 its reverse (2413264221), we get a palindrome (3637887363).

It can be divided in two parts, 122 and 4623142, that added together give a palindrome (4623264).

The spelling of 1224623142 in words is "one billion, two hundred twenty-four million, six hundred twenty-three thousand, one hundred forty-two".