4243495440 has 40 divisors (see below), whose sum is σ = 13154836608. Its totient is φ = 1131598720.

The previous prime is 4243495427. The next prime is 4243495453. The reversal of 4243495440 is 445943424.

It is an interprime number because it is at equal distance from previous prime (4243495427) and next prime (4243495453).

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8840376 + ... + 8840855.

Almost surely, 2^4243495440 is an apocalyptic number.

4243495440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243495440 is an abundant number, since it is smaller than the sum of its proper divisors (8911341168).

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

4243495440 is a wasteful number, since it uses less digits than its factorization.

4243495440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17681247 (or 17681241 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 4243495440 is about 65142.1172514373. The cubic root of 4243495440 is about 1618.9791159823.

The spelling of 4243495440 in words is "four billion, two hundred forty-three million, four hundred ninety-five thousand, four hundred forty".