1242666000 has 480 divisors, whose sum is σ = 4779979776. Its totient is φ = 299520000.

The previous prime is 1242665989. The next prime is 1242666013. The reversal of 1242666000 is 6662421.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9485935 + ... + 9486065.

Almost surely, 2^1242666000 is an apocalyptic number.

1242666000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2389989888).

1242666000 is an abundant number, since it is smaller than the sum of its proper divisors (3537313776).

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

1242666000 is a wasteful number, since it uses less digits than its factorization.

1242666000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1242666000 is about 35251.4680545364. The cubic root of 1242666000 is about 1075.1064614232.

The spelling of 1242666000 in words is "one billion, two hundred forty-two million, six hundred sixty-six thousand".