45239841 has 6 divisors (see below), whose sum is σ = 65346450. Its totient is φ = 30159888.

The previous prime is 45239837. The next prime is 45239867. The reversal of 45239841 is 14893254.

45239841 is a `hidden beast` number, since 4 + 523 + 98 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24800400 + 20439441 = 4980^2 + 4521^2 .

It is not a de Polignac number, because 45239841 - 2² = 45239837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45239796 and 45239805.

It is not an unprimeable number, because it can be changed into a prime (45231841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2513316 + ... + 2513333.

It is an arithmetic number, because the mean of its divisors is an integer number (10891075).

Almost surely, 2^45239841 is an apocalyptic number.

It is an amenable number.

45239841 is a deficient number, since it is larger than the sum of its proper divisors (20106609).

45239841 is a wasteful number, since it uses less digits than its factorization.

45239841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026655 (or 5026652 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 45239841 is about 6726.0568686267. The cubic root of 45239841 is about 356.3201287610.

The spelling of 45239841 in words is "forty-five million, two hundred thirty-nine thousand, eight hundred forty-one".