37728041 has 4 divisors (see below), whose sum is σ = 40630212. Its totient is φ = 34825872.

The previous prime is 37728037. The next prime is 37728107. The reversal of 37728041 is 14082773.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8880400 + 28847641 = 2980^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 37728041 - 2² = 37728037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 37727989 and 37728007.

It is not an unprimeable number, because it can be changed into a prime (37728001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451066 + ... + 1451091.

It is an arithmetic number, because the mean of its divisors is an integer number (10157553).

Almost surely, 2^37728041 is an apocalyptic number.

It is an amenable number.

37728041 is a deficient number, since it is larger than the sum of its proper divisors (2902171).

37728041 is a wasteful number, since it uses less digits than its factorization.

37728041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902170.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 37728041 is about 6142.3156056979. The cubic root of 37728041 is about 335.3935850754.

The spelling of 37728041 in words is "thirty-seven million, seven hundred twenty-eight thousand, forty-one".