45828281 has 4 divisors (see below), whose sum is σ = 46162932. Its totient is φ = 45493632.

The previous prime is 45828269. The next prime is 45828317. The reversal of 45828281 is 18282854.

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 16883881 + 28944400 = 4109^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 45828281 - 2⁶ = 45828217 is a prime.

It is a super-2 number, since 2×45828281² = 4200462678829922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45828221) 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, 167120 + ... + 167393.

It is an arithmetic number, because the mean of its divisors is an integer number (11540733).

Almost surely, 2^45828281 is an apocalyptic number.

It is an amenable number.

45828281 is a deficient number, since it is larger than the sum of its proper divisors (334651).

45828281 is a wasteful number, since it uses less digits than its factorization.

45828281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334650.

The product of its digits is 40960, while the sum is 38.

The square root of 45828281 is about 6769.6588540339. The cubic root of 45828281 is about 357.8583779684.

It can be divided in two parts, 4 and 5828281, that added together give a palindrome (5828285).

The spelling of 45828281 in words is "forty-five million, eight hundred twenty-eight thousand, two hundred eighty-one".