45002809 has 8 divisors (see below), whose sum is σ = 46992960. Its totient is φ = 43041936.

The previous prime is 45002807. The next prime is 45002843. The reversal of 45002809 is 90820054.

It is a happy number.

45002809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45002809 - 2¹ = 45002807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45002807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 10354.

It is an arithmetic number, because the mean of its divisors is an integer number (5874120).

Almost surely, 2^45002809 is an apocalyptic number.

It is an amenable number.

45002809 is a deficient number, since it is larger than the sum of its proper divisors (1990151).

45002809 is a wasteful number, since it uses less digits than its factorization.

45002809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14639.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 45002809 is about 6708.4132997304. The cubic root of 45002809 is about 355.6967312678.

The spelling of 45002809 in words is "forty-five million, two thousand, eight hundred nine".