45440313 has 4 divisors (see below), whose sum is σ = 60587088. Its totient is φ = 30293540.

The previous prime is 45440281. The next prime is 45440321. The reversal of 45440313 is 31304454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45440313 - 2⁵ = 45440281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45440393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7573383 + ... + 7573388.

It is an arithmetic number, because the mean of its divisors is an integer number (15146772).

Almost surely, 2^45440313 is an apocalyptic number.

It is an amenable number.

45440313 is a deficient number, since it is larger than the sum of its proper divisors (15146775).

45440313 is a wasteful number, since it uses less digits than its factorization.

45440313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146774.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 45440313 is about 6740.9430349173. The cubic root of 45440313 is about 356.8456755165.

Adding to 45440313 its reverse (31304454), we get a palindrome (76744767).

It can be divided in two parts, 45440 and 313, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 45440313 in words is "forty-five million, four hundred forty thousand, three hundred thirteen".