45373809 has 8 divisors (see below), whose sum is σ = 65152192. Its totient is φ = 27922320.

The previous prime is 45373789. The next prime is 45373817. The reversal of 45373809 is 90837354.

45373809 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 not a de Polignac number, because 45373809 - 2⁹ = 45373297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1163431 = 45373809 / (4 + 5 + 3 + 7 + 3 + 8 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45373829) 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, 581677 + ... + 581754.

It is an arithmetic number, because the mean of its divisors is an integer number (8144024).

Almost surely, 2^45373809 is an apocalyptic number.

It is an amenable number.

45373809 is a deficient number, since it is larger than the sum of its proper divisors (19778383).

45373809 is a wasteful number, since it uses less digits than its factorization.

45373809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163447.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 45373809 is about 6736.0083877620. The cubic root of 45373809 is about 356.6715038018.

The spelling of 45373809 in words is "forty-five million, three hundred seventy-three thousand, eight hundred nine".