45051420 has 24 divisors (see below), whose sum is σ = 126144144. Its totient is φ = 12013696.

The previous prime is 45051379. The next prime is 45051421. The reversal of 45051420 is 2415054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45051421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375369 + ... + 375488.

It is an arithmetic number, because the mean of its divisors is an integer number (5256006).

Almost surely, 2^45051420 is an apocalyptic number.

It is an amenable number.

45051420 is an abundant number, since it is smaller than the sum of its proper divisors (81092724).

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

45051420 is a wasteful number, since it uses less digits than its factorization.

45051420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750869 (or 750867 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45051420 is about 6712.0354587860. The cubic root of 45051420 is about 355.8247569935.

Adding to 45051420 its reverse (2415054), we get a palindrome (47466474).

The spelling of 45051420 in words is "forty-five million, fifty-one thousand, four hundred twenty".