5438221407 has 48 divisors (see below), whose sum is σ = 8529051648. Its totient is φ = 3329061120.

The previous prime is 5438221387. The next prime is 5438221417. The reversal of 5438221407 is 7041228345.

It is a happy number.

5438221407 is a `hidden beast` number, since 5 + 438 + 2 + 214 + 0 + 7 = 666.

It is not a de Polignac number, because 5438221407 - 2⁷ = 5438221279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438221417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 811623 + ... + 818295.

It is an arithmetic number, because the mean of its divisors is an integer number (177688576).

Almost surely, 2^5438221407 is an apocalyptic number.

5438221407 is a deficient number, since it is larger than the sum of its proper divisors (3090830241).

5438221407 is a wasteful number, since it uses less digits than its factorization.

5438221407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6860 (or 6857 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 5438221407 is about 73744.2974541083. The cubic root of 5438221407 is about 1758.5401771257.

The spelling of 5438221407 in words is "five billion, four hundred thirty-eight million, two hundred twenty-one thousand, four hundred seven".