3728394 has 24 divisors (see below), whose sum is σ = 8160672. Its totient is φ = 1230120.

The previous prime is 3728393. The next prime is 3728407. The reversal of 3728394 is 4938273.

It is not an unprimeable number, because it can be changed into a prime (3728393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 849 + ... + 2859.

It is an arithmetic number, because the mean of its divisors is an integer number (340028).

Almost surely, 2^3728394 is an apocalyptic number.

3728394 is an abundant number, since it is smaller than the sum of its proper divisors (4432278).

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

3728394 is a wasteful number, since it uses less digits than its factorization.

3728394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 2119 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3728394 is about 1930.9049691790. The cubic root of 3728394 is about 155.0626732329.

The spelling of 3728394 in words is "three million, seven hundred twenty-eight thousand, three hundred ninety-four".