436381138 has 8 divisors (see below), whose sum is σ = 657999360. Its totient is φ = 217048020.

The previous prime is 436381103. The next prime is 436381147. The reversal of 436381138 is 831183634.

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

It is a junction number, because it is equal to n+sod(n) for n = 436381097 and 436381106.

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, 570798 + ... + 571561.

It is an arithmetic number, because the mean of its divisors is an integer number (82249920).

Almost surely, 2^436381138 is an apocalyptic number.

436381138 is a deficient number, since it is larger than the sum of its proper divisors (221618222).

436381138 is a wasteful number, since it uses less digits than its factorization.

436381138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142552.

The product of its digits is 41472, while the sum is 37.

The square root of 436381138 is about 20889.7376240105. The cubic root of 436381138 is about 758.4995430819.

The spelling of 436381138 in words is "four hundred thirty-six million, three hundred eighty-one thousand, one hundred thirty-eight".