541717638 has 96 divisors (see below), whose sum is σ = 1383671808. Its totient is φ = 139809600.

The previous prime is 541717633. The next prime is 541717679. The reversal of 541717638 is 836717145.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 541717638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541717633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 617256 + ... + 618132.

It is an arithmetic number, because the mean of its divisors is an integer number (14413248).

Almost surely, 2^541717638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 541717638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691835904).

541717638 is an abundant number, since it is smaller than the sum of its proper divisors (841954170).

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

541717638 is a wasteful number, since it uses less digits than its factorization.

541717638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1091 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 541717638 is about 23274.8284204202. The cubic root of 541717638 is about 815.1877761215.

The spelling of 541717638 in words is "five hundred forty-one million, seven hundred seventeen thousand, six hundred thirty-eight".