245631456 has 216 divisors, whose sum is σ = 829679760. Its totient is φ = 67516416.

The previous prime is 245631439. The next prime is 245631469. The reversal of 245631456 is 654136542.

It is a super-3 number, since 3×245631456³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 245631456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2759860 + ... + 2759948.

It is an arithmetic number, because the mean of its divisors is an integer number (3841110).

Almost surely, 2^245631456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245631456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414839880).

245631456 is an abundant number, since it is smaller than the sum of its proper divisors (584048304).

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

245631456 is a wasteful number, since it uses less digits than its factorization.

245631456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 138 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 245631456 is about 15672.6339841138. The cubic root of 245631456 is about 626.2695950459.

Adding to 245631456 its reverse (654136542), we get a palindrome (899767998).

The spelling of 245631456 in words is "two hundred forty-five million, six hundred thirty-one thousand, four hundred fifty-six".