45005422420 has 96 divisors (see below), whose sum is σ = 111629500416. Its totient is φ = 14914972800.

The previous prime is 45005422403. The next prime is 45005422457. The reversal of 45005422420 is 2422450054.

45005422420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3948049 + ... + 3959431.

It is an arithmetic number, because the mean of its divisors is an integer number (1162807296).

Almost surely, 2^45005422420 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 45005422420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55814750208).

45005422420 is an abundant number, since it is smaller than the sum of its proper divisors (66624077996).

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

45005422420 is a wasteful number, since it uses less digits than its factorization.

45005422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12341 (or 12339 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 45005422420 its reverse (2422450054), we get a palindrome (47427872474).

The spelling of 45005422420 in words is "forty-five billion, five million, four hundred twenty-two thousand, four hundred twenty".