538978434 has 16 divisors (see below), whose sum is σ = 1134691680. Its totient is φ = 170203680.

The previous prime is 538978417. The next prime is 538978439. The reversal of 538978434 is 434879835.

It is not an unprimeable number, because it can be changed into a prime (538978439) 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, 2363827 + ... + 2364054.

It is an arithmetic number, because the mean of its divisors is an integer number (70918230).

Almost surely, 2^538978434 is an apocalyptic number.

538978434 is an abundant number, since it is smaller than the sum of its proper divisors (595713246).

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

538978434 is a wasteful number, since it uses less digits than its factorization.

538978434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727905.

The product of its digits is 2903040, while the sum is 51.

The square root of 538978434 is about 23215.9090711520. The cubic root of 538978434 is about 813.8114503112.

The spelling of 538978434 in words is "five hundred thirty-eight million, nine hundred seventy-eight thousand, four hundred thirty-four".