245857480 has 96 divisors (see below), whose sum is σ = 616694400. Its totient is φ = 88133760.

The previous prime is 245857477. The next prime is 245857487. The reversal of 245857480 is 84758542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245857487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382039 + ... + 382681.

It is an arithmetic number, because the mean of its divisors is an integer number (6423900).

Almost surely, 2^245857480 is an apocalyptic number.

245857480 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 245857480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308347200).

245857480 is an abundant number, since it is smaller than the sum of its proper divisors (370836920).

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

245857480 is a wasteful number, since it uses less digits than its factorization.

245857480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 740 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 245857480 is about 15679.8431114600. The cubic root of 245857480 is about 626.4616287616.

The spelling of 245857480 in words is "two hundred forty-five million, eight hundred fifty-seven thousand, four hundred eighty".