4236432440 has 16 divisors (see below), whose sum is σ = 9531973080. Its totient is φ = 1694572960.

The previous prime is 4236432427. The next prime is 4236432457. The reversal of 4236432440 is 442346324.

It is a junction number, because it is equal to n+sod(n) for n = 4236432397 and 4236432406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52955366 + ... + 52955445.

Almost surely, 2^4236432440 is an apocalyptic number.

4236432440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4236432440 is an abundant number, since it is smaller than the sum of its proper divisors (5295540640).

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

4236432440 is a wasteful number, since it uses less digits than its factorization.

4236432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105910822 (or 105910818 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

The square root of 4236432440 is about 65087.8824359804. The cubic root of 4236432440 is about 1618.0803915149.

Adding to 4236432440 its reverse (442346324), we get a palindrome (4678778764).

The spelling of 4236432440 in words is "four billion, two hundred thirty-six million, four hundred thirty-two thousand, four hundred forty".