2249645580 has 144 divisors (see below), whose sum is σ = 8398737984. Its totient is φ = 474647040.

The previous prime is 2249645549. The next prime is 2249645609. The reversal of 2249645580 is 855469422.

2249645580 is a `hidden beast` number, since 2 + 2 + 4 + 9 + 64 + 5 + 580 = 666.

It is a super-2 number, since 2×2249645580² = 10121810471227072800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52291 + ... + 85050.

Almost surely, 2^2249645580 is an apocalyptic number.

2249645580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2249645580 is an abundant number, since it is smaller than the sum of its proper divisors (6149092404).

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

2249645580 is a wasteful number, since it uses less digits than its factorization.

2249645580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137376 (or 137371 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 2249645580 is about 47430.4288405661. The cubic root of 2249645580 is about 1310.3018902941.

The spelling of 2249645580 in words is "two billion, two hundred forty-nine million, six hundred forty-five thousand, five hundred eighty".