5408443237 has 4 divisors (see below), whose sum is σ = 5408599500. Its totient is φ = 5408286976.

The previous prime is 5408443181. The next prime is 5408443277. The reversal of 5408443237 is 7323448045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2035272996 + 3373170241 = 45114^2 + 58079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5408443237 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5408443237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5408443277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508 + ... + 104005.

It is an arithmetic number, because the mean of its divisors is an integer number (1352149875).

Almost surely, 2^5408443237 is an apocalyptic number.

It is an amenable number.

5408443237 is a deficient number, since it is larger than the sum of its proper divisors (156263).

5408443237 is a wasteful number, since it uses less digits than its factorization.

5408443237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156262.

The product of its (nonzero) digits is 322560, while the sum is 40.

The square root of 5408443237 is about 73542.1187959662. The cubic root of 5408443237 is about 1755.3245436223.

The spelling of 5408443237 in words is "five billion, four hundred eight million, four hundred forty-three thousand, two hundred thirty-seven".