4243287465 has 80 divisors (see below), whose sum is σ = 8272096272. Its totient is φ = 2072272896.

The previous prime is 4243287463. The next prime is 4243287479. The reversal of 4243287465 is 5647823424.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1619901504 + 2623385961 = 40248^2 + 51219^2 .

It is not a de Polignac number, because 4243287465 - 2¹ = 4243287463 is a prime.

It is a super-2 number, since 2×4243287465² = 36010977021252252450, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4243287465.

It is not an unprimeable number, because it can be changed into a prime (4243287463) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 246417 + ... + 263073.

Almost surely, 2^4243287465 is an apocalyptic number.

4243287465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4243287465 is a deficient number, since it is larger than the sum of its proper divisors (4028808807).

4243287465 is a wasteful number, since it uses less digits than its factorization.

4243287465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16728 (or 16719 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 4243287465 is about 65140.5209144047. The cubic root of 4243287465 is about 1618.9526666642.

The spelling of 4243287465 in words is "four billion, two hundred forty-three million, two hundred eighty-seven thousand, four hundred sixty-five".