45440402502 has 64 divisors (see below), whose sum is σ = 103835934720. Its totient is φ = 13122410400.

The previous prime is 45440402453. The next prime is 45440402503. The reversal of 45440402502 is 20520404454.

It is a self number, because there is not a number n which added to its sum of digits gives 45440402502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440402503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356149 + ... + 466607.

It is an arithmetic number, because the mean of its divisors is an integer number (1622436480).

Almost surely, 2^45440402502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45440402502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51917967360).

45440402502 is an abundant number, since it is smaller than the sum of its proper divisors (58395532218).

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

45440402502 is a wasteful number, since it uses less digits than its factorization.

45440402502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110769.

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 45440402502 its reverse (20520404454), we get a palindrome (65960806956).

The spelling of 45440402502 in words is "forty-five billion, four hundred forty million, four hundred two thousand, five hundred two".