1244430042 has 64 divisors (see below), whose sum is σ = 2752081920. Its totient is φ = 373374144.

The previous prime is 1244429987. The next prime is 1244430053. The reversal of 1244430042 is 2400344421.

It is a happy number.

It is a super-2 number, since 2×1244430042² = 3097212258864243528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244429994 and 1244430021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410143 + ... + 413165.

It is an arithmetic number, because the mean of its divisors is an integer number (43001280).

Almost surely, 2^1244430042 is an apocalyptic number.

1244430042 is an abundant number, since it is smaller than the sum of its proper divisors (1507651878).

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

1244430042 is a wasteful number, since it uses less digits than its factorization.

1244430042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1244430042 is about 35276.4800114751. The cubic root of 1244430042 is about 1075.6149478129.

Adding to 1244430042 its reverse (2400344421), we get a palindrome (3644774463).

It can be divided in two parts, 12444 and 30042, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 1244430042 in words is "one billion, two hundred forty-four million, four hundred thirty thousand, forty-two".