5390440936 has 16 divisors (see below), whose sum is σ = 10110255300. Its totient is φ = 2694372864.

The previous prime is 5390440919. The next prime is 5390440943. The reversal of 5390440936 is 6390440935.

It can be written as a sum of positive squares in 2 ways, for example, as 4765140900 + 625300036 = 69030^2 + 25006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5390440892 and 5390440901.

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, 78505 + ... + 130168.

Almost surely, 2^5390440936 is an apocalyptic number.

It is an amenable number.

5390440936 is a deficient number, since it is larger than the sum of its proper divisors (4719814364).

5390440936 is a wasteful number, since it uses less digits than its factorization.

5390440936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211908 (or 211904 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 5390440936 is about 73419.6222817851. The cubic root of 5390440936 is about 1753.3748139727.

Subtracting 5390440936 from its reverse (6390440935), we obtain a palindrome (999999999).

The spelling of 5390440936 in words is "five billion, three hundred ninety million, four hundred forty thousand, nine hundred thirty-six".