438199874 has 32 divisors (see below), whose sum is σ = 766621056. Its totient is φ = 183980160.

The previous prime is 438199789. The next prime is 438199877. The reversal of 438199874 is 478991834.

438199874 = 4558² + 4559² + ... + 4578².

It is not an unprimeable number, because it can be changed into a prime (438199877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159089 + ... + 161819.

It is an arithmetic number, because the mean of its divisors is an integer number (23956908).

Almost surely, 2^438199874 is an apocalyptic number.

438199874 is a deficient number, since it is larger than the sum of its proper divisors (328421182).

438199874 is a wasteful number, since it uses less digits than its factorization.

438199874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970.

The product of its digits is 1741824, while the sum is 53.

The square root of 438199874 is about 20933.2241663820. The cubic root of 438199874 is about 759.5518329545.

The spelling of 438199874 in words is "four hundred thirty-eight million, one hundred ninety-nine thousand, eight hundred seventy-four".