245231510340 has 192 divisors, whose sum is σ = 734850902016. Its totient is φ = 60956679168.

The previous prime is 245231510263. The next prime is 245231510353. The reversal of 245231510340 is 43015132542.

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 = 245231510298 and 245231510307.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27113859 + ... + 27122901.

It is an arithmetic number, because the mean of its divisors is an integer number (3827348448).

Almost surely, 2^245231510340 is an apocalyptic number.

245231510340 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 245231510340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367425451008).

245231510340 is an abundant number, since it is smaller than the sum of its proper divisors (489619391676).

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

245231510340 is a wasteful number, since it uses less digits than its factorization.

245231510340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9578 (or 9576 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 245231510340 its reverse (43015132542), we get a palindrome (288246642882).

The spelling of 245231510340 in words is "two hundred forty-five billion, two hundred thirty-one million, five hundred ten thousand, three hundred forty".