838454436 has 24 divisors (see below), whose sum is σ = 2173771040. Its totient is φ = 279484776.

The previous prime is 838454431. The next prime is 838454453. The reversal of 838454436 is 634454838.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 838454391 and 838454400.

It is not an unprimeable number, because it can be changed into a prime (838454431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3881626 + ... + 3881841.

Almost surely, 2^838454436 is an apocalyptic number.

It is an amenable number.

838454436 is an abundant number, since it is smaller than the sum of its proper divisors (1335316604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838454436 is a wasteful number, since it uses less digits than its factorization.

838454436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763480 (or 7763472 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 838454436 is about 28956.0777039985. The cubic root of 838454436 is about 942.9597504625.

The spelling of 838454436 in words is "eight hundred thirty-eight million, four hundred fifty-four thousand, four hundred thirty-six".