245387724 has 24 divisors (see below), whose sum is σ = 606252528. Its totient is φ = 76984320.

The previous prime is 245387711. The next prime is 245387729. The reversal of 245387724 is 427783542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245387729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601237 + ... + 601644.

It is an arithmetic number, because the mean of its divisors is an integer number (25260522).

Almost surely, 2^245387724 is an apocalyptic number.

It is an amenable number.

245387724 is an abundant number, since it is smaller than the sum of its proper divisors (360864804).

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

245387724 is a wasteful number, since it uses less digits than its factorization.

245387724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202905 (or 1202903 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The square root of 245387724 is about 15664.8563351216. The cubic root of 245387724 is about 626.0623842669.

The spelling of 245387724 in words is "two hundred forty-five million, three hundred eighty-seven thousand, seven hundred twenty-four".