245404160 has 80 divisors (see below), whose sum is σ = 592267896. Its totient is φ = 97517568.

The previous prime is 245404157. The next prime is 245404169. The reversal of 245404160 is 61404542.

It can be written as a sum of positive squares in 4 ways, for example, as 242362624 + 3041536 = 15568^2 + 1744^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (245404169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657734 + ... + 658106.

Almost surely, 2^245404160 is an apocalyptic number.

245404160 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 245404160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296133948).

245404160 is an abundant number, since it is smaller than the sum of its proper divisors (346863736).

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

245404160 is an equidigital number, since it uses as much as digits as its factorization.

245404160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 637 counting only the distinct ones).

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

The square root of 245404160 is about 15665.3809401495. The cubic root of 245404160 is about 626.0763617817.

The spelling of 245404160 in words is "two hundred forty-five million, four hundred four thousand, one hundred sixty".