245231040 has 112 divisors (see below), whose sum is σ = 781702272. Its totient is φ = 65135616.

The previous prime is 245231033. The next prime is 245231071. The reversal of 245231040 is 40132542.

It is a junction number, because it is equal to n+sod(n) for n = 245230998 and 245231016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448047 + ... + 448593.

Almost surely, 2^245231040 is an apocalyptic number.

245231040 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 245231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390851136).

245231040 is an abundant number, since it is smaller than the sum of its proper divisors (536471232).

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

245231040 is a wasteful number, since it uses less digits than its factorization.

245231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 245231040 is about 15659.8544054535. The cubic root of 245231040 is about 625.9291056027.

Adding to 245231040 its reverse (40132542), we get a palindrome (285363582).

The spelling of 245231040 in words is "two hundred forty-five million, two hundred thirty-one thousand, forty".