1242320422 has 24 divisors (see below), whose sum is σ = 2184292440. Its totient is φ = 528353280.

The previous prime is 1242320411. The next prime is 1242320447. The reversal of 1242320422 is 2240232421.

It is a junction number, because it is equal to n+sod(n) for n = 1242320393 and 1242320402.

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, 35547 + ... + 61222.

It is an arithmetic number, because the mean of its divisors is an integer number (91012185).

Almost surely, 2^1242320422 is an apocalyptic number.

1242320422 is a deficient number, since it is larger than the sum of its proper divisors (941972018).

1242320422 is a wasteful number, since it uses less digits than its factorization.

1242320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96916 (or 96909 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1242320422 is about 35246.5661022460. The cubic root of 1242320422 is about 1075.0067919528.

Adding to 1242320422 its reverse (2240232421), we get a palindrome (3482552843).

The spelling of 1242320422 in words is "one billion, two hundred forty-two million, three hundred twenty thousand, four hundred twenty-two".