45420305 has 24 divisors (see below), whose sum is σ = 64372608. Its totient is φ = 30669408.

The previous prime is 45420289. The next prime is 45420313. The reversal of 45420305 is 50302454.

It is not a de Polignac number, because 45420305 - 2⁴ = 45420289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15032 + ... + 17798.

It is an arithmetic number, because the mean of its divisors is an integer number (2682192).

Almost surely, 2^45420305 is an apocalyptic number.

It is an amenable number.

45420305 is a deficient number, since it is larger than the sum of its proper divisors (18952303).

45420305 is a wasteful number, since it uses less digits than its factorization.

45420305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 45420305 is about 6739.4588061654. The cubic root of 45420305 is about 356.7932931275.

Adding to 45420305 its reverse (50302454), we get a palindrome (95722759).

The spelling of 45420305 in words is "forty-five million, four hundred twenty thousand, three hundred five".