1242146700 has 54 divisors (see below), whose sum is σ = 3893442644. Its totient is φ = 331238880.

The previous prime is 1242146683. The next prime is 1242146707. The reversal of 1242146700 is 76412421.

It is not an unprimeable number, because it can be changed into a prime (1242146707) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 689182 + ... + 690981.

Almost surely, 2^1242146700 is an apocalyptic number.

1242146700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242146700 is an abundant number, since it is smaller than the sum of its proper divisors (2651295944).

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

1242146700 is a wasteful number, since it uses less digits than its factorization.

1242146700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380183 (or 1380173 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1242146700 is about 35244.1016341742. The cubic root of 1242146700 is about 1074.9566811461.

The spelling of 1242146700 in words is "one billion, two hundred forty-two million, one hundred forty-six thousand, seven hundred".