242209407 has 16 divisors (see below), whose sum is σ = 353854080. Its totient is φ = 146148000.

The previous prime is 242209381. The next prime is 242209423. The reversal of 242209407 is 704902242.

It is not a de Polignac number, because 242209407 - 2⁸ = 242209151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242209477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8469 + ... + 23582.

It is an arithmetic number, because the mean of its divisors is an integer number (22115880).

Almost surely, 2^242209407 is an apocalyptic number.

242209407 is a deficient number, since it is larger than the sum of its proper divisors (111644673).

242209407 is a wasteful number, since it uses less digits than its factorization.

242209407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32294.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 242209407 is about 15563.0783266036. The cubic root of 242209407 is about 623.3476628071.

The spelling of 242209407 in words is "two hundred forty-two million, two hundred nine thousand, four hundred seven".