245432774440 has 64 divisors (see below), whose sum is σ = 640001813760. Its totient is φ = 82963184640.

The previous prime is 245432774413. The next prime is 245432774441. The reversal of 245432774440 is 44477234542.

It is not an unprimeable number, because it can be changed into a prime (245432774441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6152977 + ... + 6192736.

It is an arithmetic number, because the mean of its divisors is an integer number (10000028340).

Almost surely, 2^245432774440 is an apocalyptic number.

245432774440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245432774440 is an abundant number, since it is smaller than the sum of its proper divisors (394569039320).

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

245432774440 is a wasteful number, since it uses less digits than its factorization.

245432774440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345802 (or 12345798 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 46.

The spelling of 245432774440 in words is "two hundred forty-five billion, four hundred thirty-two million, seven hundred seventy-four thousand, four hundred forty".