2223981520 has 20 divisors (see below), whose sum is σ = 5170757220. Its totient is φ = 889592576.

The previous prime is 2223981511. The next prime is 2223981547. The reversal of 2223981520 is 251893222.

It can be written as a sum of positive squares in 2 ways, for example, as 1061717056 + 1162264464 = 32584^2 + 34092^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×2223981520³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13899805 + ... + 13899964.

It is an arithmetic number, because the mean of its divisors is an integer number (258537861).

Almost surely, 2^2223981520 is an apocalyptic number.

2223981520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223981520 is an abundant number, since it is smaller than the sum of its proper divisors (2946775700).

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

2223981520 is a wasteful number, since it uses less digits than its factorization.

2223981520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27799782 (or 27799776 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2223981520 is about 47159.1085581566. The cubic root of 2223981520 is about 1305.3001604490.

The spelling of 2223981520 in words is "two billion, two hundred twenty-three million, nine hundred eighty-one thousand, five hundred twenty".