45251340 has 48 divisors (see below), whose sum is σ = 127125600. Its totient is φ = 12026880.

The previous prime is 45251329. The next prime is 45251377. The reversal of 45251340 is 4315254.

45251340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 45251340.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19860 + ... + 22020.

It is an arithmetic number, because the mean of its divisors is an integer number (2648450).

Almost surely, 2^45251340 is an apocalyptic number.

It is an amenable number.

45251340 is an abundant number, since it is smaller than the sum of its proper divisors (81874260).

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

45251340 is a wasteful number, since it uses less digits than its factorization.

45251340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45251340 is about 6726.9116242151. The cubic root of 45251340 is about 356.3503158554.

Adding to 45251340 its reverse (4315254), we get a palindrome (49566594).

The spelling of 45251340 in words is "forty-five million, two hundred fifty-one thousand, three hundred forty".