245369440 has 48 divisors (see below), whose sum is σ = 586232640. Its totient is φ = 97039360.

The previous prime is 245369437. The next prime is 245369447. The reversal of 245369440 is 44963542.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 245369440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245369447) 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, 5625 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (12213180).

Almost surely, 2^245369440 is an apocalyptic number.

245369440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245369440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293116320).

245369440 is an abundant number, since it is smaller than the sum of its proper divisors (340863200).

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

245369440 is a wasteful number, since it uses less digits than its factorization.

245369440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17335 (or 17327 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 245369440 is about 15664.2727248985. The cubic root of 245369440 is about 626.0468344413.

The spelling of 245369440 in words is "two hundred forty-five million, three hundred sixty-nine thousand, four hundred forty".