838435455 has 160 divisors (see below), whose sum is σ = 1826592768. Its totient is φ = 362361600.

The previous prime is 838435361. The next prime is 838435459. The reversal of 838435455 is 554534838.

It is not a de Polignac number, because 838435455 - 2¹⁵ = 838402687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 838435455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838435459) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1795132 + ... + 1795598.

Almost surely, 2^838435455 is an apocalyptic number.

838435455 is an abundant number, since it is smaller than the sum of its proper divisors (988157313).

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

838435455 is a wasteful number, since it uses less digits than its factorization.

838435455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 530 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 838435455 is about 28955.7499471176. The cubic root of 838435455 is about 942.9526348088.

It can be divided in two parts, 83843 and 5455, that added together give a palindrome (89298).

The spelling of 838435455 in words is "eight hundred thirty-eight million, four hundred thirty-five thousand, four hundred fifty-five".