28192741 has 8 divisors (see below), whose sum is σ = 28628600. Its totient is φ = 27760320.

The previous prime is 28192739. The next prime is 28192763. The reversal of 28192741 is 14729182.

It can be written as a sum of positive squares in 4 ways, for example, as 324900 + 27867841 = 570^2 + 5279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28192741 - 2¹ = 28192739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28192697 and 28192706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28192781) 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, 19015 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (3578575).

Almost surely, 2^28192741 is an apocalyptic number.

It is an amenable number.

28192741 is a deficient number, since it is larger than the sum of its proper divisors (435859).

28192741 is a wasteful number, since it uses less digits than its factorization.

28192741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 8064, while the sum is 34.

The square root of 28192741 is about 5309.6837005607. The cubic root of 28192741 is about 304.3540607262.

The spelling of 28192741 in words is "twenty-eight million, one hundred ninety-two thousand, seven hundred forty-one".