9428240042 has 8 divisors (see below), whose sum is σ = 15230233956. Its totient is φ = 4351495392.

The previous prime is 9428239987. The next prime is 9428240053. The reversal of 9428240042 is 2400428249.

It can be written as a sum of positive squares in 2 ways, for example, as 8353777201 + 1074462841 = 91399^2 + 32779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9428239984 and 9428240011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181312283 + ... + 181312334.

Almost surely, 2^9428240042 is an apocalyptic number.

9428240042 is a deficient number, since it is larger than the sum of its proper divisors (5801993914).

9428240042 is a wasteful number, since it uses less digits than its factorization.

9428240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362624632.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 9428240042 is about 97099.1248261281. The cubic root of 9428240042 is about 2112.5656325535.

The spelling of 9428240042 in words is "nine billion, four hundred twenty-eight million, two hundred forty thousand, forty-two".