1242632042 has 8 divisors (see below), whose sum is σ = 1866248832. Its totient is φ = 620549100.

The previous prime is 1242632029. The next prime is 1242632077. The reversal of 1242632042 is 2402362421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381434 + ... + 384677.

It is an arithmetic number, because the mean of its divisors is an integer number (233281104).

Almost surely, 2^1242632042 is an apocalyptic number.

1242632042 is a deficient number, since it is larger than the sum of its proper divisors (623616790).

1242632042 is an equidigital number, since it uses as much as digits as its factorization.

1242632042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766924.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1242632042 is about 35250.9863975464. The cubic root of 1242632042 is about 1075.0966682855.

Adding to 1242632042 its reverse (2402362421), we get a palindrome (3644994463).

The spelling of 1242632042 in words is "one billion, two hundred forty-two million, six hundred thirty-two thousand, forty-two".