45505322040 has 64 divisors (see below), whose sum is σ = 137202048000. Its totient is φ = 12073767552.

The previous prime is 45505321997. The next prime is 45505322047. The reversal of 45505322040 is 4022350554.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45505321989 and 45505322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45505322047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928912 + ... + 976671.

It is an arithmetic number, because the mean of its divisors is an integer number (2143782000).

Almost surely, 2^45505322040 is an apocalyptic number.

45505322040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45505322040 is an abundant number, since it is smaller than the sum of its proper divisors (91696725960).

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

45505322040 is a wasteful number, since it uses less digits than its factorization.

45505322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905796 (or 1905792 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 45505322040 its reverse (4022350554), we get a palindrome (49527672594).

The spelling of 45505322040 in words is "forty-five billion, five hundred five million, three hundred twenty-two thousand, forty".