242976786 has 64 divisors (see below), whose sum is σ = 536632320. Its totient is φ = 72887040.

The previous prime is 242976779. The next prime is 242976821. The reversal of 242976786 is 687679242.

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 31 ways as a sum of consecutive naturals, for example, 1060920 + ... + 1061148.

It is an arithmetic number, because the mean of its divisors is an integer number (8384880).

Almost surely, 2^242976786 is an apocalyptic number.

242976786 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 242976786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268316160).

242976786 is an abundant number, since it is smaller than the sum of its proper divisors (293655534).

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

242976786 is a wasteful number, since it uses less digits than its factorization.

242976786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 2032128, while the sum is 51.

The square root of 242976786 is about 15587.7126609391. The cubic root of 242976786 is about 624.0052750622.

The spelling of 242976786 in words is "two hundred forty-two million, nine hundred seventy-six thousand, seven hundred eighty-six".