11738728 has 8 divisors (see below), whose sum is σ = 22010130. Its totient is φ = 5869360.

The previous prime is 11738723. The next prime is 11738729. The reversal of 11738728 is 82783711.

11738728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8773444 + 2965284 = 2962^2 + 1722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11738723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 733663 + ... + 733678.

Almost surely, 2^11738728 is an apocalyptic number.

It is an amenable number.

11738728 is a deficient number, since it is larger than the sum of its proper divisors (10271402).

11738728 is a wasteful number, since it uses less digits than its factorization.

11738728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467347 (or 1467343 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 11738728 is about 3426.1827155013. The cubic root of 11738728 is about 227.2690761498.

The spelling of 11738728 in words is "eleven million, seven hundred thirty-eight thousand, seven hundred twenty-eight".