45635821 has 32 divisors (see below), whose sum is σ = 59719680. Its totient is φ = 33835200.

The previous prime is 45635819. The next prime is 45635827. The reversal of 45635821 is 12853654.

It is not a de Polignac number, because 45635821 - 2¹ = 45635819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45635827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238836 + ... + 239026.

It is an arithmetic number, because the mean of its divisors is an integer number (1866240).

Almost surely, 2^45635821 is an apocalyptic number.

It is an amenable number.

45635821 is a deficient number, since it is larger than the sum of its proper divisors (14083859).

45635821 is a wasteful number, since it uses less digits than its factorization.

45635821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 28800, while the sum is 34.

The square root of 45635821 is about 6755.4290019213. The cubic root of 45635821 is about 357.3567222159.

The spelling of 45635821 in words is "forty-five million, six hundred thirty-five thousand, eight hundred twenty-one".