245304352540 has 96 divisors (see below), whose sum is σ = 558773220096. Its totient is φ = 89921863680.

The previous prime is 245304352537. The next prime is 245304352621. The reversal of 245304352540 is 45253403542.

It is a self number, because there is not a number n which added to its sum of digits gives 245304352540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21379005 + ... + 21390475.

It is an arithmetic number, because the mean of its divisors is an integer number (5820554376).

Almost surely, 2^245304352540 is an apocalyptic number.

245304352540 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 245304352540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279386610048).

245304352540 is an abundant number, since it is smaller than the sum of its proper divisors (313468867556).

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

245304352540 is a wasteful number, since it uses less digits than its factorization.

245304352540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12079 (or 12077 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

The spelling of 245304352540 in words is "two hundred forty-five billion, three hundred four million, three hundred fifty-two thousand, five hundred forty".