1008722642 has 16 divisors (see below), whose sum is σ = 1610150400. Its totient is φ = 472304448.

The previous prime is 1008722641. The next prime is 1008722669. The reversal of 1008722642 is 2462278001.

It is a junction number, because it is equal to n+sod(n) for n = 1008722599 and 1008722608.

It is not an unprimeable number, because it can be changed into a prime (1008722641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67778 + ... + 81309.

It is an arithmetic number, because the mean of its divisors is an integer number (100634400).

Almost surely, 2^1008722642 is an apocalyptic number.

1008722642 is a deficient number, since it is larger than the sum of its proper divisors (601427758).

1008722642 is a wasteful number, since it uses less digits than its factorization.

1008722642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149305.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1008722642 is about 31760.3942355884. The cubic root of 1008722642 is about 1002.8991342317.

The spelling of 1008722642 in words is "one billion, eight million, seven hundred twenty-two thousand, six hundred forty-two".