2247252640 has 48 divisors (see below), whose sum is σ = 5438641320. Its totient is φ = 876974080.

The previous prime is 2247252619. The next prime is 2247252643. The reversal of 2247252640 is 462527422.

It can be written as a sum of positive squares in 4 ways, for example, as 1467502864 + 779749776 = 38308^2 + 27924^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2247252596 and 2247252605.

It is not an unprimeable number, because it can be changed into a prime (2247252643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164725 + ... + 177844.

Almost surely, 2^2247252640 is an apocalyptic number.

2247252640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2247252640 is an abundant number, since it is smaller than the sum of its proper divisors (3191388680).

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

2247252640 is a wasteful number, since it uses less digits than its factorization.

2247252640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342625 (or 342617 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 2247252640 is about 47405.1963396419. The cubic root of 2247252640 is about 1309.8371376502.

The spelling of 2247252640 in words is "two billion, two hundred forty-seven million, two hundred fifty-two thousand, six hundred forty".