438378226 has 48 divisors (see below), whose sum is σ = 782759808. Its totient is φ = 182520000.

The previous prime is 438378209. The next prime is 438378233. The reversal of 438378226 is 622873834.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583351 + ... + 584101.

It is an arithmetic number, because the mean of its divisors is an integer number (16307496).

Almost surely, 2^438378226 is an apocalyptic number.

438378226 is a deficient number, since it is larger than the sum of its proper divisors (344381582).

438378226 is a wasteful number, since it uses less digits than its factorization.

438378226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 934 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 438378226 is about 20937.4837552176. The cubic root of 438378226 is about 759.6548675298.

The spelling of 438378226 in words is "four hundred thirty-eight million, three hundred seventy-eight thousand, two hundred twenty-six".