245403144 has 96 divisors (see below), whose sum is σ = 773997120. Its totient is φ = 68784768.

The previous prime is 245403139. The next prime is 245403157. The reversal of 245403144 is 441304542.

It is a happy number.

245403144 is a `hidden beast` number, since 245 + 403 + 14 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22119 + ... + 31305.

It is an arithmetic number, because the mean of its divisors is an integer number (8062470).

Almost surely, 2^245403144 is an apocalyptic number.

245403144 is a gapful number since it is divisible by the number (24) 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 245403144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386998560).

245403144 is an abundant number, since it is smaller than the sum of its proper divisors (528593976).

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

245403144 is a wasteful number, since it uses less digits than its factorization.

245403144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259 (or 9252 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 245403144 is about 15665.3485119227. The cubic root of 245403144 is about 626.0754977724.

Adding to 245403144 its reverse (441304542), we get a palindrome (686707686).

The spelling of 245403144 in words is "two hundred forty-five million, four hundred three thousand, one hundred forty-four".