438972199 has 4 divisors (see below), whose sum is σ = 449678880. Its totient is φ = 428265520.

The previous prime is 438972179. The next prime is 438972211. The reversal of 438972199 is 991279834.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 438972199 - 2¹³ = 438964007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438972109) 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, 5353279 + ... + 5353360.

It is an arithmetic number, because the mean of its divisors is an integer number (112419720).

Almost surely, 2^438972199 is an apocalyptic number.

438972199 is a deficient number, since it is larger than the sum of its proper divisors (10706681).

438972199 is a wasteful number, since it uses less digits than its factorization.

438972199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706680.

The product of its digits is 979776, while the sum is 52.

The square root of 438972199 is about 20951.6633945852. The cubic root of 438972199 is about 759.9978064341.

The spelling of 438972199 in words is "four hundred thirty-eight million, nine hundred seventy-two thousand, one hundred ninety-nine".