245440016 has 80 divisors (see below), whose sum is σ = 523252224. Its totient is φ = 111071232.

The previous prime is 245440009. The next prime is 245440031. The reversal of 245440016 is 610044542.

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 15 ways as a sum of consecutive naturals, for example, 933101 + ... + 933363.

Almost surely, 2^245440016 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 245440016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261626112).

245440016 is an abundant number, since it is smaller than the sum of its proper divisors (277812208).

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

245440016 is a wasteful number, since it uses less digits than its factorization.

245440016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 245440016 is about 15666.5253326958. The cubic root of 245440016 is about 626.1068523010.

Adding to 245440016 its reverse (610044542), we get a palindrome (855484558).

The spelling of 245440016 in words is "two hundred forty-five million, four hundred forty thousand, sixteen".