45032122040 has 128 divisors (see below), whose sum is σ = 107256078720. Its totient is φ = 16996761600.

The previous prime is 45032122013. The next prime is 45032122123. The reversal of 45032122040 is 4022123054.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 45032121997 and 45032122015.

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, 6167672 + ... + 6174968.

It is an arithmetic number, because the mean of its divisors is an integer number (837938115).

Almost surely, 2^45032122040 is an apocalyptic number.

45032122040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45032122040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53628039360).

45032122040 is an abundant number, since it is smaller than the sum of its proper divisors (62223956680).

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

45032122040 is a wasteful number, since it uses less digits than its factorization.

45032122040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473 (or 7469 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 45032122040 its reverse (4022123054), we get a palindrome (49054245094).

The spelling of 45032122040 in words is "forty-five billion, thirty-two million, one hundred twenty-two thousand, forty".