438975998 has 8 divisors (see below), whose sum is σ = 670888008. Its totient is φ = 215346664.

The previous prime is 438975983. The next prime is 438976003. The reversal of 438975998 is 899579834.

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 438975998.

It is a congruent number.

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, 2070536 + ... + 2070747.

It is an arithmetic number, because the mean of its divisors is an integer number (83861001).

Almost surely, 2^438975998 is an apocalyptic number.

438975998 is a deficient number, since it is larger than the sum of its proper divisors (231912010).

438975998 is a wasteful number, since it uses less digits than its factorization.

438975998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141338.

The product of its digits is 19595520, while the sum is 62.

The square root of 438975998 is about 20951.7540554484. The cubic root of 438975998 is about 759.9999988458. Note that the first 5 decimals are identical.

The spelling of 438975998 in words is "four hundred thirty-eight million, nine hundred seventy-five thousand, nine hundred ninety-eight".