4499289400320 has 2640 divisors, whose sum is σ = 20159940091200. Its totient is φ = 953842728960.

The previous prime is 4499289400297. The next prime is 4499289400327. The reversal of 4499289400320 is 230049829944.

4499289400320 is a `hidden beast` number, since 4 + 49 + 92 + 89 + 400 + 32 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2640).

It is a super-2 number, since 2×4499289400320² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4499289400327) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 236804705271 + ... + 236804705289.

Almost surely, 2^{4499289400320} is an apocalyptic number.

4499289400320 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 4499289400320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10079970045600).

4499289400320 is an abundant number, since it is smaller than the sum of its proper divisors (15660650690880).

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

4499289400320 is an equidigital number, since it uses as much as digits as its factorization.

4499289400320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 4499289400320 in words is "four trillion, four hundred ninety-nine billion, two hundred eighty-nine million, four hundred thousand, three hundred twenty".