45321672 has 32 divisors (see below), whose sum is σ = 123605280. Its totient is φ = 13733760.

The previous prime is 45321671. The next prime is 45321673. The reversal of 45321672 is 27612354.

45321672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45321671) and next prime (45321673).

It is not an unprimeable number, because it can be changed into a prime (45321671) 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, 85573 + ... + 86100.

It is an arithmetic number, because the mean of its divisors is an integer number (3862665).

Almost surely, 2^45321672 is an apocalyptic number.

It is an amenable number.

45321672 is an abundant number, since it is smaller than the sum of its proper divisors (78283608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45321672 is a wasteful number, since it uses less digits than its factorization.

45321672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171693 (or 171689 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 45321672 is about 6732.1372535028. The cubic root of 45321672 is about 356.5348397241.

The spelling of 45321672 in words is "forty-five million, three hundred twenty-one thousand, six hundred seventy-two".