245454728 has 32 divisors (see below), whose sum is σ = 471011520. Its totient is φ = 119880000.

The previous prime is 245454719. The next prime is 245454731. The reversal of 245454728 is 827454542.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72023 + ... + 75353.

It is an arithmetic number, because the mean of its divisors is an integer number (14719110).

Almost surely, 2^245454728 is an apocalyptic number.

It is an amenable number.

245454728 is a deficient number, since it is larger than the sum of its proper divisors (225556792).

245454728 is a wasteful number, since it uses less digits than its factorization.

245454728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549 (or 3545 counting only the distinct ones).

The product of its digits is 358400, while the sum is 41.

The square root of 245454728 is about 15666.9948618106. The cubic root of 245454728 is about 626.1193619427.

The spelling of 245454728 in words is "two hundred forty-five million, four hundred fifty-four thousand, seven hundred twenty-eight".