438204994 has 8 divisors (see below), whose sum is σ = 661243968. Its totient is φ = 217790340.

The previous prime is 438204989. The next prime is 438205003. The reversal of 438204994 is 499402834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 438204994.

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, 655662 + ... + 656329.

It is an arithmetic number, because the mean of its divisors is an integer number (82655496).

Almost surely, 2^438204994 is an apocalyptic number.

438204994 is a deficient number, since it is larger than the sum of its proper divisors (223038974).

438204994 is a wasteful number, since it uses less digits than its factorization.

438204994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312160.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 438204994 is about 20933.3464596562. The cubic root of 438204994 is about 759.5547911862.

The spelling of 438204994 in words is "four hundred thirty-eight million, two hundred four thousand, nine hundred ninety-four".