2249685520 has 20 divisors (see below), whose sum is σ = 5230519020. Its totient is φ = 899874176.

The previous prime is 2249685511. The next prime is 2249685533. The reversal of 2249685520 is 255869422.

It can be written as a sum of positive squares in 2 ways, for example, as 1186664704 + 1063020816 = 34448^2 + 32604^2 .

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

It is a super-2 number, since 2×2249685520² = 10122169877795340800, which contains 22 as substring.

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, 14060455 + ... + 14060614.

It is an arithmetic number, because the mean of its divisors is an integer number (261525951).

Almost surely, 2^2249685520 is an apocalyptic number.

2249685520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2249685520 is an abundant number, since it is smaller than the sum of its proper divisors (2980833500).

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

2249685520 is a wasteful number, since it uses less digits than its factorization.

2249685520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28121082 (or 28121076 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 2249685520 is about 47430.8498764254. The cubic root of 2249685520 is about 1310.3096445745.

The spelling of 2249685520 in words is "two billion, two hundred forty-nine million, six hundred eighty-five thousand, five hundred twenty".