242949609 has 24 divisors (see below), whose sum is σ = 403396032. Its totient is φ = 138019680.

The previous prime is 242949607. The next prime is 242949611. The reversal of 242949609 is 906949242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242949607) and next prime (242949611).

It is not a de Polignac number, because 242949609 - 2¹ = 242949607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242949607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247 + ... + 22044.

It is an arithmetic number, because the mean of its divisors is an integer number (16808168).

Almost surely, 2^242949609 is an apocalyptic number.

It is an amenable number.

242949609 is a deficient number, since it is larger than the sum of its proper divisors (160446423).

242949609 is a wasteful number, since it uses less digits than its factorization.

242949609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22477 (or 22474 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 242949609 is about 15586.8408922398. The cubic root of 242949609 is about 623.9820091583.

The spelling of 242949609 in words is "two hundred forty-two million, nine hundred forty-nine thousand, six hundred nine".