1242342000 has 120 divisors (see below), whose sum is σ = 4339149360. Its totient is φ = 331286400.

The previous prime is 1242341993. The next prime is 1242342029. The reversal of 1242342000 is 2432421.

1242342000 is a `hidden beast` number, since 1 + 242 + 3 + 420 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16510 + ... + 52509.

It is an arithmetic number, because the mean of its divisors is an integer number (36159578).

Almost surely, 2^1242342000 is an apocalyptic number.

1242342000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242342000 is an abundant number, since it is smaller than the sum of its proper divisors (3096807360).

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

1242342000 is a wasteful number, since it uses less digits than its factorization.

1242342000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69048 (or 69029 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1242342000 is about 35246.8722016578. The cubic root of 1242342000 is about 1075.0130158871.

Adding to 1242342000 its reverse (2432421), we get a palindrome (1244774421).

The spelling of 1242342000 in words is "one billion, two hundred forty-two million, three hundred forty-two thousand".