4242642064 has 10 divisors (see below), whose sum is σ = 8220119030. Its totient is φ = 2121321024.

The previous prime is 4242642059. The next prime is 4242642073. The reversal of 4242642064 is 4602462424.

It can be written as a sum of positive squares in only one way, i.e., 4213048464 + 29593600 = 64908^2 + 5440^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132582549 + ... + 132582580.

It is an arithmetic number, because the mean of its divisors is an integer number (822011903).

Almost surely, 2^4242642064 is an apocalyptic number.

It is an amenable number.

4242642064 is a deficient number, since it is larger than the sum of its proper divisors (3977476966).

4242642064 is a wasteful number, since it uses less digits than its factorization.

4242642064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265165137 (or 265165131 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 4242642064 is about 65135.5668126101. The cubic root of 4242642064 is about 1618.8705819867.

The spelling of 4242642064 in words is "four billion, two hundred forty-two million, six hundred forty-two thousand, sixty-four".