245577440 has 48 divisors (see below), whose sum is σ = 605410848. Its totient is φ = 93958656.

The previous prime is 245577419. The next prime is 245577469. The reversal of 245577440 is 44775542.

245577440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 245577394 and 245577403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29687 + ... + 37046.

It is an arithmetic number, because the mean of its divisors is an integer number (12612726).

Almost surely, 2^245577440 is an apocalyptic number.

245577440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245577440 is an abundant number, since it is smaller than the sum of its proper divisors (359833408).

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

245577440 is a wasteful number, since it uses less digits than its factorization.

245577440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66771 (or 66763 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 245577440 is about 15670.9106308472. The cubic root of 245577440 is about 626.2236847228.

The spelling of 245577440 in words is "two hundred forty-five million, five hundred seventy-seven thousand, four hundred forty".