4243739240 has 64 divisors (see below), whose sum is σ = 10887806160. Its totient is φ = 1474744320.

The previous prime is 4243739237. The next prime is 4243739249. The reversal of 4243739240 is 429373424.

It can be written as a sum of positive squares in 8 ways, for example, as 409900516 + 3833838724 = 20246^2 + 61918^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4243739194 and 4243739203.

It is not an unprimeable number, because it can be changed into a prime (4243739249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231191 + ... + 248870.

Almost surely, 2^4243739240 is an apocalyptic number.

4243739240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243739240 is an abundant number, since it is smaller than the sum of its proper divisors (6644066920).

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

4243739240 is a wasteful number, since it uses less digits than its factorization.

4243739240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480102 (or 480098 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 4243739240 is about 65143.9885177443. The cubic root of 4243739240 is about 1619.0101202613.

The spelling of 4243739240 in words is "four billion, two hundred forty-three million, seven hundred thirty-nine thousand, two hundred forty".