245241440 has 48 divisors (see below), whose sum is σ = 588056112. Its totient is φ = 96628224.

The previous prime is 245241421. The next prime is 245241449. The reversal of 245241440 is 44142542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245241449) by changing a digit.

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, 719 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (12251169).

Almost surely, 2^245241440 is an apocalyptic number.

245241440 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 245241440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294028056).

245241440 is an abundant number, since it is smaller than the sum of its proper divisors (342814672).

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

245241440 is a wasteful number, since it uses less digits than its factorization.

245241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22959 (or 22951 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 245241440 is about 15660.1864612143. The cubic root of 245241440 is about 625.9379538174.

Adding to 245241440 its reverse (44142542), we get a palindrome (289383982).

The spelling of 245241440 in words is "two hundred forty-five million, two hundred forty-one thousand, four hundred forty".