2315945520 has 640 divisors, whose sum is σ = 9683189760. Its totient is φ = 503884800.

The previous prime is 2315945461. The next prime is 2315945561. The reversal of 2315945520 is 255495132.

It is a happy number.

2315945520 is a `hidden beast` number, since 2 + 3 + 15 + 94 + 552 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37966290 + ... + 37966350.

It is an arithmetic number, because the mean of its divisors is an integer number (15129984).

Almost surely, 2^2315945520 is an apocalyptic number.

2315945520 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 2315945520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4841594880).

2315945520 is an abundant number, since it is smaller than the sum of its proper divisors (7367244240).

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

2315945520 is an equidigital number, since it uses as much as digits as its factorization.

2315945520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 2315945520 is about 48124.2716308517. The cubic root of 2315945520 is about 1323.0495608256.

The spelling of 2315945520 in words is "two billion, three hundred fifteen million, nine hundred forty-five thousand, five hundred twenty".