245977480 has 64 divisors (see below), whose sum is σ = 649635840. Its totient is φ = 82052352.

The previous prime is 245977469. The next prime is 245977513. The reversal of 245977480 is 84779542.

245977480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 245977480.

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, 1512 + ... + 22231.

It is an arithmetic number, because the mean of its divisors is an integer number (10150560).

Almost surely, 2^245977480 is an apocalyptic number.

245977480 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 245977480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324817920).

245977480 is an abundant number, since it is smaller than the sum of its proper divisors (403658360).

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

245977480 is a wasteful number, since it uses less digits than its factorization.

245977480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23798 (or 23794 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 245977480 is about 15683.6692135482. The cubic root of 245977480 is about 626.5635349120.

The spelling of 245977480 in words is "two hundred forty-five million, nine hundred seventy-seven thousand, four hundred eighty".