242736428 has 24 divisors (see below), whose sum is σ = 475933584. Its totient is φ = 107352000.

The previous prime is 242736413. The next prime is 242736437. The reversal of 242736428 is 824637242.

It is a junction number, because it is equal to n+sod(n) for n = 242736391 and 242736400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72923 + ... + 76178.

It is an arithmetic number, because the mean of its divisors is an integer number (19830566).

Almost surely, 2^242736428 is an apocalyptic number.

It is an amenable number.

242736428 is a deficient number, since it is larger than the sum of its proper divisors (233197156).

242736428 is a wasteful number, since it uses less digits than its factorization.

242736428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149153 (or 149151 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 242736428 is about 15580.0008985879. Note that the first 3 decimals coincide. The cubic root of 242736428 is about 623.7994472469.

The spelling of 242736428 in words is "two hundred forty-two million, seven hundred thirty-six thousand, four hundred twenty-eight".