245240501340 has 24 divisors (see below), whose sum is σ = 686673403920. Its totient is φ = 65397467008.

The previous prime is 245240501321. The next prime is 245240501347. The reversal of 245240501340 is 43105042542.

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 = 245240501298 and 245240501307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245240501347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043670785 + ... + 2043670904.

It is an arithmetic number, because the mean of its divisors is an integer number (28611391830).

Almost surely, 2^245240501340 is an apocalyptic number.

245240501340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245240501340 is an abundant number, since it is smaller than the sum of its proper divisors (441432902580).

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

245240501340 is a wasteful number, since it uses less digits than its factorization.

245240501340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087341701 (or 4087341699 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 245240501340 its reverse (43105042542), we get a palindrome (288345543882).

The spelling of 245240501340 in words is "two hundred forty-five billion, two hundred forty million, five hundred one thousand, three hundred forty".