242064660 has 24 divisors (see below), whose sum is σ = 677781216. Its totient is φ = 64550560.

The previous prime is 242064643. The next prime is 242064661. The reversal of 242064660 is 66460242.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242064661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017146 + ... + 2017265.

It is an arithmetic number, because the mean of its divisors is an integer number (28240884).

Almost surely, 2^242064660 is an apocalyptic number.

242064660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242064660 is an abundant number, since it is smaller than the sum of its proper divisors (435716556).

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

242064660 is a wasteful number, since it uses less digits than its factorization.

242064660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034423 (or 4034421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 242064660 is about 15558.4272984129. The cubic root of 242064660 is about 623.2234649282.

The spelling of 242064660 in words is "two hundred forty-two million, sixty-four thousand, six hundred sixty".