245204025440 has 48 divisors (see below), whose sum is σ = 631957651920. Its totient is φ = 89165099520.

The previous prime is 245204025439. The next prime is 245204025481. The reversal of 245204025440 is 44520402542.

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

It is a junction number, because it is equal to n+sod(n) for n = 245204025397 and 245204025406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69658475 + ... + 69661994.

It is an arithmetic number, because the mean of its divisors is an integer number (13165784415).

Almost surely, 2^245204025440 is an apocalyptic number.

245204025440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245204025440 is an abundant number, since it is smaller than the sum of its proper divisors (386753626480).

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

245204025440 is a wasteful number, since it uses less digits than its factorization.

245204025440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139320495 (or 139320487 counting only the distinct ones).

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

Adding to 245204025440 its reverse (44520402542), we get a palindrome (289724427982).

The spelling of 245204025440 in words is "two hundred forty-five billion, two hundred four million, twenty-five thousand, four hundred forty".