245540444000 has 96 divisors (see below), whose sum is σ = 604690422336. Its totient is φ = 97988659200.

The previous prime is 245540443999. The next prime is 245540444003. The reversal of 245540444000 is 444045542.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245540444003) 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, 1661117 + ... + 1802883.

It is an arithmetic number, because the mean of its divisors is an integer number (6298858566).

Almost surely, 2^245540444000 is an apocalyptic number.

245540444000 is a gapful number since it is divisible by the number (20) 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 245540444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302345211168).

245540444000 is an abundant number, since it is smaller than the sum of its proper divisors (359149978336).

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

245540444000 is a wasteful number, since it uses less digits than its factorization.

245540444000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142225 (or 142207 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 245540444000 its reverse (444045542), we get a palindrome (245984489542).

The spelling of 245540444000 in words is "two hundred forty-five billion, five hundred forty million, four hundred forty-four thousand".