242128816 has 10 divisors (see below), whose sum is σ = 469124612. Its totient is φ = 121064400.

The previous prime is 242128811. The next prime is 242128853. The reversal of 242128816 is 618821242.

It is not an unprimeable number, because it can be changed into a prime (242128811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7566510 + ... + 7566541.

Almost surely, 2^242128816 is an apocalyptic number.

It is an amenable number.

242128816 is a deficient number, since it is larger than the sum of its proper divisors (226995796).

242128816 is a wasteful number, since it uses less digits than its factorization.

242128816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15133059 (or 15133053 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 242128816 is about 15560.4889383335. The cubic root of 242128816 is about 623.2785190789.

The spelling of 242128816 in words is "two hundred forty-two million, one hundred twenty-eight thousand, eight hundred sixteen".