45421768 has 64 divisors (see below), whose sum is σ = 101445120. Its totient is φ = 18662400.

The previous prime is 45421763. The next prime is 45421771. The reversal of 45421768 is 86712454.

It is not an unprimeable number, because it can be changed into a prime (45421763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167473 + ... + 167743.

It is an arithmetic number, because the mean of its divisors is an integer number (1585080).

Almost surely, 2^45421768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45421768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50722560).

45421768 is an abundant number, since it is smaller than the sum of its proper divisors (56023352).

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

45421768 is a wasteful number, since it uses less digits than its factorization.

45421768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 394 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 45421768 is about 6739.5673451639. The cubic root of 45421768 is about 356.7971238884.

It can be divided in two parts, 454 and 21768, that added together give a palindrome (22222).

The spelling of 45421768 in words is "forty-five million, four hundred twenty-one thousand, seven hundred sixty-eight".