45440104440 has 128 divisors (see below), whose sum is σ = 144944640000. Its totient is φ = 11356735488.

The previous prime is 45440104429. The next prime is 45440104453. The reversal of 45440104440 is 4440104454.

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 = 45440104398 and 45440104407.

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, 440961 + ... + 534159.

It is an arithmetic number, because the mean of its divisors is an integer number (1132380000).

Almost surely, 2^45440104440 is an apocalyptic number.

45440104440 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 45440104440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72472320000).

45440104440 is an abundant number, since it is smaller than the sum of its proper divisors (99504535560).

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

45440104440 is a wasteful number, since it uses less digits than its factorization.

45440104440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93469 (or 93465 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 45440104440 its reverse (4440104454), we get a palindrome (49880208894).

The spelling of 45440104440 in words is "forty-five billion, four hundred forty million, one hundred four thousand, four hundred forty".