1224540042 has 32 divisors (see below), whose sum is σ = 2674944000. Its totient is φ = 370625520.

The previous prime is 1224540019. The next prime is 1224540061. The reversal of 1224540042 is 2400454221.

It is a happy number.

It is a super-2 number, since 2×1224540042² = 2998996628922723528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1224539994 and 1224540021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46209 + ... + 67707.

It is an arithmetic number, because the mean of its divisors is an integer number (83592000).

Almost surely, 2^1224540042 is an apocalyptic number.

1224540042 is an abundant number, since it is smaller than the sum of its proper divisors (1450403958).

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

1224540042 is a wasteful number, since it uses less digits than its factorization.

1224540042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22378.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1224540042 is about 34993.4285545158. The cubic root of 1224540042 is about 1069.8535456233.

Adding to 1224540042 its reverse (2400454221), we get a palindrome (3624994263).

The spelling of 1224540042 in words is "one billion, two hundred twenty-four million, five hundred forty thousand, forty-two".