2273615520 has 192 divisors, whose sum is σ = 7930814976. Its totient is φ = 542868480.

The previous prime is 2273615507. The next prime is 2273615549. The reversal of 2273615520 is 255163722.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350547 + ... + 356973.

It is an arithmetic number, because the mean of its divisors is an integer number (41306328).

Almost surely, 2^2273615520 is an apocalyptic number.

2273615520 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 2273615520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3965407488).

2273615520 is an abundant number, since it is smaller than the sum of its proper divisors (5657199456).

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

2273615520 is a wasteful number, since it uses less digits than its factorization.

2273615520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 2273615520 is about 47682.4445682056. Note that the first 3 decimals coincide. The cubic root of 2273615520 is about 1314.9392079151.

The spelling of 2273615520 in words is "two billion, two hundred seventy-three million, six hundred fifteen thousand, five hundred twenty".