3728628346 has 16 divisors (see below), whose sum is σ = 5713893504. Its totient is φ = 1824024384.

The previous prime is 3728628317. The next prime is 3728628347. The reversal of 3728628346 is 6438268273.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3728628346.

It is not an unprimeable number, because it can be changed into a prime (3728628347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397021 + ... + 406303.

It is an arithmetic number, because the mean of its divisors is an integer number (357118344).

Almost surely, 2^3728628346 is an apocalyptic number.

3728628346 is a deficient number, since it is larger than the sum of its proper divisors (1985265158).

3728628346 is a wasteful number, since it uses less digits than its factorization.

3728628346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605.

The product of its digits is 2322432, while the sum is 49.

The square root of 3728628346 is about 61062.4954124870. The cubic root of 3728628346 is about 1550.6592195576.

The spelling of 3728628346 in words is "three billion, seven hundred twenty-eight million, six hundred twenty-eight thousand, three hundred forty-six".