45330921 has 24 divisors (see below), whose sum is σ = 68612544. Its totient is φ = 29905200.

The previous prime is 45330899. The next prime is 45330949. The reversal of 45330921 is 12903354.

It is not a de Polignac number, because 45330921 - 2¹⁷ = 45199849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45334921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23620 + ... + 25466.

It is an arithmetic number, because the mean of its divisors is an integer number (2858856).

Almost surely, 2^45330921 is an apocalyptic number.

It is an amenable number.

45330921 is a deficient number, since it is larger than the sum of its proper divisors (23281623).

45330921 is a wasteful number, since it uses less digits than its factorization.

45330921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 45330921 is about 6732.8241474139. The cubic root of 45330921 is about 356.5590913040.

The spelling of 45330921 in words is "forty-five million, three hundred thirty thousand, nine hundred twenty-one".