3728916642 has 32 divisors (see below), whose sum is σ = 8150148864. Its totient is φ = 1127984400.

The previous prime is 3728916619. The next prime is 3728916671. The reversal of 3728916642 is 2466198273.

It is a junction number, because it is equal to n+sod(n) for n = 3728916591 and 3728916600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11788 + ... + 87159.

It is an arithmetic number, because the mean of its divisors is an integer number (254692152).

Almost surely, 2^3728916642 is an apocalyptic number.

3728916642 is an abundant number, since it is smaller than the sum of its proper divisors (4421232222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3728916642 is a wasteful number, since it uses less digits than its factorization.

3728916642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99534.

The product of its digits is 870912, while the sum is 48.

The square root of 3728916642 is about 61064.8560302896. The cubic root of 3728916642 is about 1550.6991839705.

The spelling of 3728916642 in words is "three billion, seven hundred twenty-eight million, nine hundred sixteen thousand, six hundred forty-two".