45002321 has 16 divisors (see below), whose sum is σ = 55776000. Its totient is φ = 35356608.

The previous prime is 45002311. The next prime is 45002327. The reversal of 45002321 is 12320054.

It is not a de Polignac number, because 45002321 - 2⁶ = 45002257 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45002321.

It is not an unprimeable number, because it can be changed into a prime (45002327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11900 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (3486000).

Almost surely, 2^45002321 is an apocalyptic number.

It is an amenable number.

45002321 is a deficient number, since it is larger than the sum of its proper divisors (10773679).

45002321 is a wasteful number, since it uses less digits than its factorization.

45002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 45002321 is about 6708.3769273946. The cubic root of 45002321 is about 355.6954455656.

Adding to 45002321 its reverse (12320054), we get a palindrome (57322375).

The spelling of 45002321 in words is "forty-five million, two thousand, three hundred twenty-one".