245486520 has 96 divisors (see below), whose sum is σ = 823605120. Its totient is φ = 63348480.

The previous prime is 245486497. The next prime is 245486539. The reversal of 245486520 is 25684542.

It is a happy number.

245486520 is a `hidden beast` number, since 2 + 4 + 54 + 86 + 520 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (8579220).

Almost surely, 2^245486520 is an apocalyptic number.

245486520 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 245486520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411802560).

245486520 is an abundant number, since it is smaller than the sum of its proper divisors (578118600).

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

245486520 is a wasteful number, since it uses less digits than its factorization.

245486520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22045 (or 22038 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 245486520 is about 15668.0094460017. The cubic root of 245486520 is about 626.1463930338.

The spelling of 245486520 in words is "two hundred forty-five million, four hundred eighty-six thousand, five hundred twenty".