45378307 has 4 divisors (see below), whose sum is σ = 48868960. Its totient is φ = 41887656.

The previous prime is 45378259. The next prime is 45378323. The reversal of 45378307 is 70387354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45378307 - 2¹⁵ = 45345539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45378107) 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, 1745307 + ... + 1745332.

It is an arithmetic number, because the mean of its divisors is an integer number (12217240).

Almost surely, 2^45378307 is an apocalyptic number.

45378307 is a deficient number, since it is larger than the sum of its proper divisors (3490653).

45378307 is a wasteful number, since it uses less digits than its factorization.

45378307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490652.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 45378307 is about 6736.3422567444. The cubic root of 45378307 is about 356.6832892749.

The spelling of 45378307 in words is "forty-five million, three hundred seventy-eight thousand, three hundred seven".