242972366 has 32 divisors (see below), whose sum is σ = 454906368. Its totient is φ = 94762080.

The previous prime is 242972357. The next prime is 242972369. The reversal of 242972366 is 663279242.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242972369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3521 + ... + 22323.

It is an arithmetic number, because the mean of its divisors is an integer number (14215824).

Almost surely, 2^242972366 is an apocalyptic number.

242972366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

242972366 is a deficient number, since it is larger than the sum of its proper divisors (211934002).

242972366 is a wasteful number, since it uses less digits than its factorization.

242972366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896.

The product of its digits is 217728, while the sum is 41.

The square root of 242972366 is about 15587.5708819559. The cubic root of 242972366 is about 624.0014912714.

The spelling of 242972366 in words is "two hundred forty-two million, nine hundred seventy-two thousand, three hundred sixty-six".