1142420424 has 16 divisors (see below), whose sum is σ = 2856051120. Its totient is φ = 380806800.

The previous prime is 1142420413. The next prime is 1142420441. The reversal of 1142420424 is 4240242411.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 47600851 = 1142420424 / (1 + 1 + 4 + 2 + 4 + 2 + 0 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 1142420394 and 1142420403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23800402 + ... + 23800449.

It is an arithmetic number, because the mean of its divisors is an integer number (178503195).

Almost surely, 2^1142420424 is an apocalyptic number.

It is an amenable number.

1142420424 is an abundant number, since it is smaller than the sum of its proper divisors (1713630696).

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

1142420424 is a wasteful number, since it uses less digits than its factorization.

1142420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47600860 (or 47600856 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1142420424 is about 33799.7104129606. The cubic root of 1142420424 is about 1045.3827261986.

Adding to 1142420424 its reverse (4240242411), we get a palindrome (5382662835).

The spelling of 1142420424 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, four hundred twenty-four".