242907646 has 16 divisors (see below), whose sum is σ = 385416864. Its totient is φ = 114580224.

The previous prime is 242907617. The next prime is 242907649. The reversal of 242907646 is 646709242.

It is a super-2 number, since 2×242907646² = 118008248970522632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242907599 and 242907608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242907649) 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, 32811 + ... + 39526.

It is an arithmetic number, because the mean of its divisors is an integer number (24088554).

Almost surely, 2^242907646 is an apocalyptic number.

242907646 is a deficient number, since it is larger than the sum of its proper divisors (142509218).

242907646 is a wasteful number, since it uses less digits than its factorization.

242907646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72435.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 242907646 is about 15585.4947306783. The cubic root of 242907646 is about 623.9460817290.

The spelling of 242907646 in words is "two hundred forty-two million, nine hundred seven thousand, six hundred forty-six".