245623211240 has 64 divisors (see below), whose sum is σ = 603006629760. Its totient is φ = 89300747520.

The previous prime is 245623211203. The next prime is 245623211261. The reversal of 245623211240 is 42112326542.

It is a junction number, because it is equal to n+sod(n) for n = 245623211197 and 245623211206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424482 + ... + 2523758.

It is an arithmetic number, because the mean of its divisors is an integer number (9421978590).

Almost surely, 2^245623211240 is an apocalyptic number.

245623211240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245623211240 is an abundant number, since it is smaller than the sum of its proper divisors (357383418520).

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

245623211240 is a wasteful number, since it uses less digits than its factorization.

245623211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104922 (or 104918 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 245623211240 its reverse (42112326542), we get a palindrome (287735537782).

The spelling of 245623211240 in words is "two hundred forty-five billion, six hundred twenty-three million, two hundred eleven thousand, two hundred forty".